– Drop 2 sheets of A4 paper at the same height h above the ground, one sheet is rounded, we notice that the round paper always falls first.
2. The fall of objects in a vacuum (không tính tiền fall).
– If the effect of air is excluded, all objects will fall at the same speed. The fall of the objects in this case is called không tính tiền fall.
– Không lấy phí fall (freefall motion) is the fall of an object under the influence of gravity only.
one. What is my leg?
– Absolute vacuum is a medium that does not contain matter and energy, relative vacuum is a medium of low pressure (simply understood as the medium that has sucked most of the air out) The concept of không tính tiền fall ( không tính tiền fall) is the fall of objects under the influence of gravity alone
b. Properties of không tính tiền fall motion
– Direction, direction: the object falls freely in the vertical direction, from the top down.
Property: Không lấy phí fall is an accelerated uniform rectilinear motion.
c. Formula of không tính tiền fall motion
In there:
– s: distance the object falls (m)
– v: speed of the object at time t (s)
– g: acceleration of không tính tiền fall (m/s2)
d. Không lấy phí fall acceleration.
– At a certain place on the Earth and near the ground, all objects are in không tính tiền fall with the same acceleration g.
– In different places, the không tính tiền fall acceleration will not be the same:
– At the largest g pole: g = 9, 8324m/s2
– At the equator, g is the smallest: g = 9, 7872m/s2
– If high accuracy is not required, we can take g = 9.8m / s2 or g = 10m/s²
II. Exercises to apply
Lesson 1: An object falls freely from a height of 20m to the ground, g = 10m/s2.
one. Calculate the time it takes for the object to hit the ground.
b. Calculate the instantaneous velocity vector when it hits the ground.
Solution guide:
one. S = vt + 1/2 gt2 → t = 2Sg = 2sS = 1/2 gt2 → t = 2Sg = 2s
b. v = gt = 20 m/s
Lesson 2: An object is dropped without a vector, its initial instantaneous velocity when it hits the ground has v = 70 m/s, g = 10 m/s2
one. Determine the falling distance of the object.
b. Calculate the falling time of the object.
Solution guide:
a / v2 – v2 = 2.gS → S = v2−v2 = 245m
b / v = gt → t = 7s
Lesson 3: From a height of 120m a person drops an object vertically with v = 10m/s, g = 10m/s2.
one. How long does it take for the object to hit the ground?
b. Calculate the instantaneous velocity of the object when it hits the ground.
Solution guide:
one. S = vt + 1/2 gt2 100 = 20t + t2 → t = 4s (receive) or t = -6s (type)
b / v = v0 + gt = 50 m/s
Lesson 4: Dropping a stone from a height h, the stone falls in time 1s. If the stone is dropped from h’ = 4h, how long will it take the stone to fall?
Solution guide:
h = 1/2 gt2 → t = 2hg = 1 → t = 2hg = 1
h’ = 1/2 gt2 → tFirst = 2hg = 2.4hg = 2s → t1 = 2hg = 2.4hg = 2s
Lesson 5: The free-falling body when it hits the ground reaches the instantaneous velocity vector v = 30m/s. From what height is the object dropped? g = 9.8m/s2.
Solution guide:
v = v + gt2 = 3.06 seconds
Distance of object falling: h = S = 1/2 gt2 = 45.9m
Exercise 6: An object is dropped freely, after 4s the object hits the ground, g = 10m/s2. Determined.
one. Calculate the height when the object is dropped.
b. Velocity when it hits the ground.
c. The height of the object after it is dropped is 2s.
Solution guide:
a / h = S = 1/2 gt2 = 80m
b / v = v0 + gt = 40 m/s
c / The distance the object falls in the first 2 seconds:First = 1/2 gt2 = 20m
The height of the object after dropping 2s: h = S2 = S – WILLFirst = 60m
Posted by: Tran Hung Dao High School
Category: Grade 10, Physics 10
[rule_{ruleNumber}]
#Choose #statement #wrong #about #movement #falling #self
[rule_3_plain]
#Choose #statement #wrong #about #movement #falling #self
Correct answers and explanations of multiple-choice questions: “Choose the wrong statement about free-falling motion” along with relevant theoretical knowledge is a useful document in Physics compiled by Tran Hung Dao High School for students. students and teachers for reference.
Quiz: Choose the incorrect statement about không tính tiền fall motion
A. It is a uniformly accelerated linear motion
B. At the initial instant the object’s instantaneous velocity vector is always zero
C. At every point we consider the object’s falling acceleration to be the same
D. Vertical and top-down motion
Answer:
Answer: B. At the initial instant the object’s instantaneous velocity vector is always zero
Join Tran Hung Dao High School to perfect your knowledge through the study about không tính tiền fall movement below.
Quick view of content1 Extended knowledge of free-falling motion1.1 I. Airdrops1.2 II. Exercises to apply
Extended knowledge of không tính tiền fall motion
I. The fall in the air
1. The fall of objects in the air.
– Objects falling in the air happen at different speed and slowness because the air resistance acting on them is not the same.
– Drop 2 sheets of A4 paper at the same height h above the ground, one sheet of paper is rounded, we notice that the rounded paper always falls first.
2. Falling of objects in a vacuum (không tính tiền fall).
– If the effect of air is excluded, all objects will fall at the same speed. The fall of the objects in this case is called không tính tiền fall.
– Không lấy phí fall (không tính tiền fall motion) is the fall of objects under the influence of gravity only.
a. What is my leg?
– Absolute vacuum is a medium without matter and energy, relative vacuum is a low-pressure environment (simply understood as the medium that has almost all of the air removed) The concept of không tính tiền fall (movement không tính tiền fall) is the fall of objects under the influence of gravity only
b. Properties of không tính tiền fall motion
– Direction, direction: objects fall freely in the vertical direction, from the top down.
Properties: Không lấy phí fall is a uniformly accelerated straight-line motion.
c. Formula of không tính tiền fall motion
In there:
– s: distance the object can fall (m)
– v: the instantaneous velocity vector of the object at time t (s)
– g: acceleration of không tính tiền fall (m/s2)
d. Không lấy phí fall acceleration.
– At a certain place on the Earth and near the ground, all objects are in không tính tiền fall with the same acceleration g.
– In different places, the không tính tiền fall acceleration will not be the same:
– At the largest g pole: g = 9, 8324m/s2
– At the equator, g is the smallest: g = 9, 7872m/s2
– If high accuracy is not required, we can take g = 9.8m/s2 or g = 10m/s²
II. Exercises to apply
Exercise 1: An object falls freely from a height of 20m to the ground, g = 10m/s2.
a. Calculate the time it takes for the object to reach the ground.
b. Calculate the instantaneous velocity vector at the moment it hits the ground.
Solution guide:
a. S= v0t + 1/2 gt2 →t= 2Sg = 2sS = 1/2 gt2 →t= 2Sg = 2s
b. v = gt = 20 m/s
Exercise 2: An object is dropped without the initial instantaneous velocity vector at the moment it hits the ground with v = 70m/s, g = 10m/s2
a. Determine the falling distance of the object.
b. Calculate the time of falling of the object.
Solution guide:
a/ v2 – v02 = 2.gS → S = v2−v02 = 245m
b/ v = gt → t = 7s
Exercise 3: From a height of 120m, a person drops a vertical object with v = 10m/s, g = 10m/s2.
a. How long does it take for the object to hit the ground?
b. Calculate the instantaneous velocity of the object when it hits the ground.
Solution guide:
a. S = v0t + 1/2 gt2 ⇔ 100 = 20t + t2 → t = 4s ( receive ) or t = -6s ( type )
b/ v = v0 + gt = 50 m/s
Exercise 4: Drop a stone from a height h, the stone falls in 1s. If the stone is dropped from h’ = 4h, how long will it take to fall?
Solution guide:
h = 1/2 gt2 → t = 2hg = 1 → t = 2hg = 1
h’ = 1/2 gt2 → t1 = 2hg = 2.4hg = 2s → t1 = 2hg = 2.4hg = 2s
Exercise 5: An object falling freely when it hits the ground will reach v = 30m/s. From what height is the object dropped? g = 9.8m/s2.
Solution guide:
v = v0 + gt2 = 3.06s
Distance of falling object: h = S = 1/2 gt2 = 45.9m
Lesson 6: People drop an object in không tính tiền fall, after 4s the object hits the ground, g = 10m/s2. Determined.
a. Calculate the height when the object is dropped.
b. Instantaneous velocity vector when it hits the ground.
c. The height of the object after being released is 2s.
Solution guide:
a/ h = S = 1/2 gt2 = 80m
b/ v = v0 + gt = 40 m/s
c/ Distance the object falls first 2s: S1 = 1/2 gt2 = 20m
The height of the object after dropping 2s: h = S2 = S – S1 = 60m
Posted by: Tran Hung Dao High School
Category: Grade 10, Physics 10
#Choose #statement #wrong #about #movement #falling #self
[rule_2_plain]
#Choose #statement #wrong #about #movement #falling #self
[rule_2_plain]
#Choose #statement #wrong #about #movement #falling #self
[rule_3_plain]
#Choose #statement #wrong #about #movement #falling #self
Correct answers and explanations of multiple-choice questions: “Choose the wrong statement about free-falling motion” along with relevant theoretical knowledge is a useful document in Physics compiled by Tran Hung Dao High School for students. students and teachers for reference.
Quiz: Choose the incorrect statement about không tính tiền fall motion
A. It is a uniformly accelerated linear motion
B. At the initial instant the object’s instantaneous velocity vector is always zero
C. At every point we consider the object’s falling acceleration to be the same
D. Vertical and top-down motion
Answer:
Answer: B. At the initial instant the object’s instantaneous velocity vector is always zero
Join Tran Hung Dao High School to perfect your knowledge through the study about không tính tiền fall movement below.
Quick view of content1 Extended knowledge of free-falling motion1.1 I. Airdrops1.2 II. Exercises to apply
Extended knowledge of không tính tiền fall motion
I. The fall in the air
1. The fall of objects in the air.
– Objects falling in the air happen at different speed and slowness because the air resistance acting on them is not the same.
– Drop 2 sheets of A4 paper at the same height h above the ground, one sheet of paper is rounded, we notice that the rounded paper always falls first.
2. Falling of objects in a vacuum (không tính tiền fall).
– If the effect of air is excluded, all objects will fall at the same speed. The fall of the objects in this case is called không tính tiền fall.
– Không lấy phí fall (không tính tiền fall motion) is the fall of objects under the influence of gravity only.
a. What is my leg?
– Absolute vacuum is a medium without matter and energy, relative vacuum is a low-pressure environment (simply understood as the medium that has almost all of the air removed) The concept of không tính tiền fall (movement không tính tiền fall) is the fall of objects under the influence of gravity only
b. Properties of không tính tiền fall motion
– Direction, direction: objects fall freely in the vertical direction, from the top down.
Properties: Không lấy phí fall is a uniformly accelerated straight-line motion.
c. Formula of không tính tiền fall motion
In there:
– s: distance the object can fall (m)
– v: the instantaneous velocity vector of the object at time t (s)
– g: acceleration of không tính tiền fall (m/s2)
d. Không lấy phí fall acceleration.
– At a certain place on the Earth and near the ground, all objects are in không tính tiền fall with the same acceleration g.
– In different places, the không tính tiền fall acceleration will not be the same:
– At the largest g pole: g = 9, 8324m/s2
– At the equator, g is the smallest: g = 9, 7872m/s2
– If high accuracy is not required, we can take g = 9.8m/s2 or g = 10m/s²
II. Exercises to apply
Exercise 1: An object falls freely from a height of 20m to the ground, g = 10m/s2.
a. Calculate the time it takes for the object to reach the ground.
b. Calculate the instantaneous velocity vector at the moment it hits the ground.
Solution guide:
a. S= v0t + 1/2 gt2 →t= 2Sg = 2sS = 1/2 gt2 →t= 2Sg = 2s
b. v = gt = 20 m/s
Exercise 2: An object is dropped without the initial instantaneous velocity vector at the moment it hits the ground with v = 70m/s, g = 10m/s2
a. Determine the falling distance of the object.
b. Calculate the time of falling of the object.
Solution guide:
a/ v2 – v02 = 2.gS → S = v2−v02 = 245m
b/ v = gt → t = 7s
Exercise 3: From a height of 120m, a person drops a vertical object with v = 10m/s, g = 10m/s2.
a. How long does it take for the object to hit the ground?
b. Calculate the instantaneous velocity of the object when it hits the ground.
Solution guide:
a. S = v0t + 1/2 gt2 ⇔ 100 = 20t + t2 → t = 4s ( receive ) or t = -6s ( type )
b/ v = v0 + gt = 50 m/s
Exercise 4: Drop a stone from a height h, the stone falls in 1s. If the stone is dropped from h’ = 4h, how long will it take to fall?
Solution guide:
h = 1/2 gt2 → t = 2hg = 1 → t = 2hg = 1
h’ = 1/2 gt2 → t1 = 2hg = 2.4hg = 2s → t1 = 2hg = 2.4hg = 2s
Exercise 5: An object falling freely when it hits the ground will reach v = 30m/s. From what height is the object dropped? g = 9.8m/s2.
Solution guide:
v = v0 + gt2 = 3.06s
Distance of falling object: h = S = 1/2 gt2 = 45.9m
Lesson 6: People drop an object in không tính tiền fall, after 4s the object hits the ground, g = 10m/s2. Determined.
a. Calculate the height when the object is dropped.
b. Instantaneous velocity vector when it hits the ground.
c. The height of the object after being released is 2s.
Solution guide:
a/ h = S = 1/2 gt2 = 80m
b/ v = v0 + gt = 40 m/s
c/ Distance the object falls first 2s: S1 = 1/2 gt2 = 20m
The height of the object after dropping 2s: h = S2 = S – S1 = 60m
Posted by: Tran Hung Dao High School
Category: Grade 10, Physics 10
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Chọn phát biểu sai về chuyển động rơi tự do -
- Drop 2 sheets of A4 paper at the same height h above the ground, one sheet is rounded, we notice that the round paper always falls first.
2. The fall of objects in a vacuum (không tính tiền fall).
- If the effect of air is excluded, all objects will fall at the same speed. The fall of the objects in this case is called không tính tiền fall.
- Không lấy phí fall (freefall motion) is the fall of an object under the influence of gravity only.
one. What is my leg?
- Absolute vacuum is a medium that does not contain matter and energy, relative vacuum is a medium of low pressure (simply understood as the medium that has sucked most of the air out) The concept of không tính tiền fall ( không tính tiền fall) is the fall of objects under the influence of gravity alone
b. Properties of không tính tiền fall motion
- Direction, direction: the object falls freely in the vertical direction, from the top down.
Property: Không lấy phí fall is an accelerated uniform rectilinear motion.
c. Formula of không tính tiền fall motion
In there:
- s: distance the object falls (m)
- v: speed of the object at time t (s)
- g: acceleration of không tính tiền fall (m/s2)
d. Không lấy phí fall acceleration.
- At a certain place on the Earth and near the ground, all objects are in không tính tiền fall with the same acceleration g.
- In different places, the không tính tiền fall acceleration will not be the same:
- At the largest g pole: g = 9, 8324m/s2
- At the equator, g is the smallest: g = 9, 7872m/s2
- If high accuracy is not required, we can take g = 9.8m / s2 or g = 10m/s²
II. Exercises to apply
Lesson 1: An object falls freely from a height of 20m to the ground, g = 10m/s2.
one. Calculate the time it takes for the object to hit the ground.
b. Calculate the instantaneous velocity vector when it hits the ground.
Solution guide:
one. S = vt + 1/2 gt2 → t = 2Sg = 2sS = 1/2 gt2 → t = 2Sg = 2s
b. v = gt = 20 m/s
Lesson 2: An object is dropped without a vector, its initial instantaneous velocity when it hits the ground has v = 70 m/s, g = 10 m/s2
one. Determine the falling distance of the object.
b. Calculate the falling time of the object.
Solution guide:
a / v2 - v2 = 2.gS → S = v2−v2 = 245m
b / v = gt → t = 7s
Lesson 3: From a height of 120m a person drops an object vertically with v = 10m/s, g = 10m/s2.
one. How long does it take for the object to hit the ground?
b. Calculate the instantaneous velocity of the object when it hits the ground.
Solution guide:
one. S = vt + 1/2 gt2 100 = 20t + t2 → t = 4s (receive) or t = -6s (type)
b / v = v0 + gt = 50 m/s
Lesson 4: Dropping a stone from a height h, the stone falls in time 1s. If the stone is dropped from h' = 4h, how long will it take the stone to fall?
Solution guide:
h = 1/2 gt2 → t = 2hg = 1 → t = 2hg = 1
h' = 1/2 gt2 → tFirst = 2hg = 2.4hg = 2s → t1 = 2hg = 2.4hg = 2s
Lesson 5: The free-falling body when it hits the ground reaches the instantaneous velocity vector v = 30m/s. From what height is the object dropped? g = 9.8m/s2.
Solution guide:
v = v + gt2 = 3.06 seconds
Distance of object falling: h = S = 1/2 gt2 = 45.9m
Exercise 6: An object is dropped freely, after 4s the object hits the ground, g = 10m/s2. Determined.
one. Calculate the height when the object is dropped.
b. Velocity when it hits the ground.
c. The height of the object after it is dropped is 2s.
Solution guide:
a / h = S = 1/2 gt2 = 80m
b / v = v0 + gt = 40 m/s
c / The distance the object falls in the first 2 seconds:First = 1/2 gt2 = 20m
The height of the object after dropping 2s: h = S2 = S - WILLFirst = 60m
Posted by: Tran Hung Dao High School
Category: Grade 10, Physics 10
[rule_{ruleNumber}]
#Choose #statement #wrong #about #movement #falling #self
[rule_3_plain]
#Choose #statement #wrong #about #movement #falling #self
Correct answers and explanations of multiple-choice questions: "Choose the wrong statement about free-falling motion" along with relevant theoretical knowledge is a useful document in Physics compiled by Tran Hung Dao High School for students. students and teachers for reference.
Quiz: Choose the incorrect statement about không tính tiền fall motion
A. It is a uniformly accelerated linear motion
B. At the initial instant the object's instantaneous velocity vector is always zero
C. At every point we consider the object's falling acceleration to be the same
D. Vertical and top-down motion
Answer:
Answer: B. At the initial instant the object's instantaneous velocity vector is always zero
Join Tran Hung Dao High School to perfect your knowledge through the study about không tính tiền fall movement below.
Quick view of content1 Extended knowledge of free-falling motion1.1 I. Airdrops1.2 II. Exercises to apply
Extended knowledge of không tính tiền fall motion
I. The fall in the air
1. The fall of objects in the air.
- Objects falling in the air happen at different speed and slowness because the air resistance acting on them is not the same.
– Drop 2 sheets of A4 paper at the same height h above the ground, one sheet of paper is rounded, we notice that the rounded paper always falls first.
2. Falling of objects in a vacuum (không tính tiền fall).
- If the effect of air is excluded, all objects will fall at the same speed. The fall of the objects in this case is called không tính tiền fall.
– Không lấy phí fall (không tính tiền fall motion) is the fall of objects under the influence of gravity only.
a. What is my leg?
– Absolute vacuum is a medium without matter and energy, relative vacuum is a low-pressure environment (simply understood as the medium that has almost all of the air removed) The concept of không tính tiền fall (movement không tính tiền fall) is the fall of objects under the influence of gravity only
b. Properties of không tính tiền fall motion
– Direction, direction: objects fall freely in the vertical direction, from the top down.
Properties: Không lấy phí fall is a uniformly accelerated straight-line motion.
c. Formula of không tính tiền fall motion
In there:
- s: distance the object can fall (m)
– v: the instantaneous velocity vector of the object at time t (s)
– g: acceleration of không tính tiền fall (m/s2)
d. Không lấy phí fall acceleration.
– At a certain place on the Earth and near the ground, all objects are in không tính tiền fall with the same acceleration g.
– In different places, the không tính tiền fall acceleration will not be the same:
– At the largest g pole: g = 9, 8324m/s2
– At the equator, g is the smallest: g = 9, 7872m/s2
– If high accuracy is not required, we can take g = 9.8m/s2 or g = 10m/s²
II. Exercises to apply
Exercise 1: An object falls freely from a height of 20m to the ground, g = 10m/s2.
a. Calculate the time it takes for the object to reach the ground.
b. Calculate the instantaneous velocity vector at the moment it hits the ground.
Solution guide:
a. S= v0t + 1/2 gt2 →t= 2Sg = 2sS = 1/2 gt2 →t= 2Sg = 2s
b. v = gt = 20 m/s
Exercise 2: An object is dropped without the initial instantaneous velocity vector at the moment it hits the ground with v = 70m/s, g = 10m/s2
a. Determine the falling distance of the object.
b. Calculate the time of falling of the object.
Solution guide:
a/ v2 – v02 = 2.gS → S = v2−v02 = 245m
b/ v = gt → t = 7s
Exercise 3: From a height of 120m, a person drops a vertical object with v = 10m/s, g = 10m/s2.
a. How long does it take for the object to hit the ground?
b. Calculate the instantaneous velocity of the object when it hits the ground.
Solution guide:
a. S = v0t + 1/2 gt2 ⇔ 100 = 20t + t2 → t = 4s ( receive ) or t = -6s ( type )
b/ v = v0 + gt = 50 m/s
Exercise 4: Drop a stone from a height h, the stone falls in 1s. If the stone is dropped from h' = 4h, how long will it take to fall?
Solution guide:
h = 1/2 gt2 → t = 2hg = 1 → t = 2hg = 1
h' = 1/2 gt2 → t1 = 2hg = 2.4hg = 2s → t1 = 2hg = 2.4hg = 2s
Exercise 5: An object falling freely when it hits the ground will reach v = 30m/s. From what height is the object dropped? g = 9.8m/s2.
Solution guide:
v = v0 + gt2 = 3.06s
Distance of falling object: h = S = 1/2 gt2 = 45.9m
Lesson 6: People drop an object in không tính tiền fall, after 4s the object hits the ground, g = 10m/s2. Determined.
a. Calculate the height when the object is dropped.
b. Instantaneous velocity vector when it hits the ground.
c. The height of the object after being released is 2s.
Solution guide:
a/ h = S = 1/2 gt2 = 80m
b/ v = v0 + gt = 40 m/s
c/ Distance the object falls first 2s: S1 = 1/2 gt2 = 20m
The height of the object after dropping 2s: h = S2 = S – S1 = 60m
Posted by: Tran Hung Dao High School
Category: Grade 10, Physics 10
#Choose #statement #wrong #about #movement #falling #self
[rule_2_plain]
#Choose #statement #wrong #about #movement #falling #self
[rule_2_plain]
#Choose #statement #wrong #about #movement #falling #self
[rule_3_plain]
#Choose #statement #wrong #about #movement #falling #self
Correct answers and explanations of multiple-choice questions: "Choose the wrong statement about free-falling motion" along with relevant theoretical knowledge is a useful document in Physics compiled by Tran Hung Dao High School for students. students and teachers for reference.
Quiz: Choose the incorrect statement about không tính tiền fall motion
A. It is a uniformly accelerated linear motion
B. At the initial instant the object's instantaneous velocity vector is always zero
C. At every point we consider the object's falling acceleration to be the same
D. Vertical and top-down motion
Answer:
Answer: B. At the initial instant the object's instantaneous velocity vector is always zero
Join Tran Hung Dao High School to perfect your knowledge through the study about không tính tiền fall movement below.
Quick view of content1 Extended knowledge of free-falling motion1.1 I. Airdrops1.2 II. Exercises to apply
Extended knowledge of không tính tiền fall motion
I. The fall in the air
1. The fall of objects in the air.
- Objects falling in the air happen at different speed and slowness because the air resistance acting on them is not the same.
– Drop 2 sheets of A4 paper at the same height h above the ground, one sheet of paper is rounded, we notice that the rounded paper always falls first.
2. Falling of objects in a vacuum (không tính tiền fall).
- If the effect of air is excluded, all objects will fall at the same speed. The fall of the objects in this case is called không tính tiền fall.
– Không lấy phí fall (không tính tiền fall motion) is the fall of objects under the influence of gravity only.
a. What is my leg?
– Absolute vacuum is a medium without matter and energy, relative vacuum is a low-pressure environment (simply understood as the medium that has almost all of the air removed) The concept of không tính tiền fall (movement không tính tiền fall) is the fall of objects under the influence of gravity only
b. Properties of không tính tiền fall motion
– Direction, direction: objects fall freely in the vertical direction, from the top down.
Properties: Không lấy phí fall is a uniformly accelerated straight-line motion.
c. Formula of không tính tiền fall motion
In there:
- s: distance the object can fall (m)
– v: the instantaneous velocity vector of the object at time t (s)
– g: acceleration of không tính tiền fall (m/s2)
d. Không lấy phí fall acceleration.
– At a certain place on the Earth and near the ground, all objects are in không tính tiền fall with the same acceleration g.
– In different places, the không tính tiền fall acceleration will not be the same:
– At the largest g pole: g = 9, 8324m/s2
– At the equator, g is the smallest: g = 9, 7872m/s2
– If high accuracy is not required, we can take g = 9.8m/s2 or g = 10m/s²
II. Exercises to apply
Exercise 1: An object falls freely from a height of 20m to the ground, g = 10m/s2.
a. Calculate the time it takes for the object to reach the ground.
b. Calculate the instantaneous velocity vector at the moment it hits the ground.
Solution guide:
a. S= v0t + 1/2 gt2 →t= 2Sg = 2sS = 1/2 gt2 →t= 2Sg = 2s
b. v = gt = 20 m/s
Exercise 2: An object is dropped without the initial instantaneous velocity vector at the moment it hits the ground with v = 70m/s, g = 10m/s2
a. Determine the falling distance of the object.
b. Calculate the time of falling of the object.
Solution guide:
a/ v2 – v02 = 2.gS → S = v2−v02 = 245m
b/ v = gt → t = 7s
Exercise 3: From a height of 120m, a person drops a vertical object with v = 10m/s, g = 10m/s2.
a. How long does it take for the object to hit the ground?
b. Calculate the instantaneous velocity of the object when it hits the ground.
Solution guide:
a. S = v0t + 1/2 gt2 ⇔ 100 = 20t + t2 → t = 4s ( receive ) or t = -6s ( type )
b/ v = v0 + gt = 50 m/s
Exercise 4: Drop a stone from a height h, the stone falls in 1s. If the stone is dropped from h' = 4h, how long will it take to fall?
Solution guide:
h = 1/2 gt2 → t = 2hg = 1 → t = 2hg = 1
h' = 1/2 gt2 → t1 = 2hg = 2.4hg = 2s → t1 = 2hg = 2.4hg = 2s
Exercise 5: An object falling freely when it hits the ground will reach v = 30m/s. From what height is the object dropped? g = 9.8m/s2.
Solution guide:
v = v0 + gt2 = 3.06s
Distance of falling object: h = S = 1/2 gt2 = 45.9m
Lesson 6: People drop an object in không tính tiền fall, after 4s the object hits the ground, g = 10m/s2. Determined.
a. Calculate the height when the object is dropped.
b. Instantaneous velocity vector when it hits the ground.
c. The height of the object after being released is 2s.
Solution guide:
a/ h = S = 1/2 gt2 = 80m
b/ v = v0 + gt = 40 m/s
c/ Distance the object falls first 2s: S1 = 1/2 gt2 = 20m
The height of the object after dropping 2s: h = S2 = S – S1 = 60m
Posted by: Tran Hung Dao High School
Category: Grade 10, Physics 10
[rule_{ruleNumber}]
[box type=”note” align=”” class=”” 1″ class=”aligncenter” src=”https://api.toploigiai.vn/storage/uploads/chon-phat-bieu-sai-ve-chuyen-dong-roi-tu-do_2″ alt=”Choose the wrong statement about free fall (Figure 2)”>
In there:
– s: distance the object falls (m)
– v: speed of the object at time t (s)
– g: acceleration of free fall (m/s2)
d. Free fall acceleration.
– At a certain place on the Earth and near the ground, all objects are in free fall with the same acceleration g.
– In different places, the free fall acceleration will not be the same:
– At the largest g pole: g = 9, 8324m/s2
– At the equator, g is the smallest: g = 9, 7872m/s2
– If high accuracy is not required, we can take g = 9.8m / s2 or g = 10m/s²
II. Exercises to apply
Lesson 1: An object falls freely from a height of 20m to the ground, g = 10m/s2.
one. Calculate the time it takes for the object to hit the ground.
b. Calculate the instantaneous velocity vector when it hits the ground.
Solution guide:
one. S = vt + 1/2 gt2 → t = 2Sg = 2sS = 1/2 gt2 → t = 2Sg = 2s
b. v = gt = 20 m/s
Lesson 2: An object is dropped without a vector, its initial instantaneous velocity when it hits the ground has v = 70 m/s, g = 10 m/s2
one. Determine the falling distance of the object.
b. Calculate the falling time of the object.
Solution guide:
a / v2 – v2 = 2.gS → S = v2−v2 = 245m
b / v = gt → t = 7s
Lesson 3: From a height of 120m a person drops an object vertically with v = 10m/s, g = 10m/s2.
one. How long does it take for the object to hit the ground?
b. Calculate the instantaneous velocity of the object when it hits the ground.
Solution guide:
one. S = vt + 1/2 gt2 100 = 20t + t2 → t = 4s (receive) or t = -6s (type)
b / v = v0 + gt = 50 m/s
Lesson 4: Dropping a stone from a height h, the stone falls in time 1s. If the stone is dropped from h’ = 4h, how long will it take the stone to fall?
Solution guide:
h = 1/2 gt2 → t = 2hg = 1 → t = 2hg = 1
h’ = 1/2 gt2 → tFirst = 2hg = 2.4hg = 2s → t1 = 2hg = 2.4hg = 2s
Lesson 5: The free-falling body when it hits the ground reaches the instantaneous velocity vector v = 30m/s. From what height is the object dropped? g = 9.8m/s2.
Solution guide:
v = v + gt2 = 3.06 seconds
Distance of object falling: h = S = 1/2 gt2 = 45.9m
Exercise 6: An object is dropped freely, after 4s the object hits the ground, g = 10m/s2. Determined.
one. Calculate the height when the object is dropped.
b. Velocity when it hits the ground.
c. The height of the object after it is dropped is 2s.
Solution guide:
a / h = S = 1/2 gt2 = 80m
b / v = v0 + gt = 40 m/s
c / The distance the object falls in the first 2 seconds:First = 1/2 gt2 = 20m
The height of the object after dropping 2s: h = S2 = S – WILLFirst = 60m
Posted by: Tran Hung Dao High School
Category: Grade 10, Physics 10
[rule_{ruleNumber}]
#Choose #statement #wrong #about #movement #falling #self
[rule_3_plain]
#Choose #statement #wrong #about #movement #falling #self
Correct answers and explanations of multiple-choice questions: “Choose the wrong statement about free-falling motion” along with relevant theoretical knowledge is a useful document in Physics compiled by Tran Hung Dao High School for students. students and teachers for reference.
Quiz: Choose the incorrect statement about không tính tiền fall motion
A. It is a uniformly accelerated linear motion
B. At the initial instant the object’s instantaneous velocity vector is always zero
C. At every point we consider the object’s falling acceleration to be the same
D. Vertical and top-down motion
Answer:
Answer: B. At the initial instant the object’s instantaneous velocity vector is always zero
Join Tran Hung Dao High School to perfect your knowledge through the study about không tính tiền fall movement below.
Quick view of content1 Extended knowledge of free-falling motion1.1 I. Airdrops1.2 II. Exercises to apply
Extended knowledge of không tính tiền fall motion
I. The fall in the air
1. The fall of objects in the air.
– Objects falling in the air happen at different speed and slowness because the air resistance acting on them is not the same.
– Drop 2 sheets of A4 paper at the same height h above the ground, one sheet of paper is rounded, we notice that the rounded paper always falls first.
2. Falling of objects in a vacuum (không tính tiền fall).
– If the effect of air is excluded, all objects will fall at the same speed. The fall of the objects in this case is called không tính tiền fall.
– Không lấy phí fall (không tính tiền fall motion) is the fall of objects under the influence of gravity only.
a. What is my leg?
– Absolute vacuum is a medium without matter and energy, relative vacuum is a low-pressure environment (simply understood as the medium that has almost all of the air removed) The concept of không tính tiền fall (movement không tính tiền fall) is the fall of objects under the influence of gravity only
b. Properties of không tính tiền fall motion
– Direction, direction: objects fall freely in the vertical direction, from the top down.
Properties: Không lấy phí fall is a uniformly accelerated straight-line motion.
c. Formula of không tính tiền fall motion
In there:
– s: distance the object can fall (m)
– v: the instantaneous velocity vector of the object at time t (s)
– g: acceleration of không tính tiền fall (m/s2)
d. Không lấy phí fall acceleration.
– At a certain place on the Earth and near the ground, all objects are in không tính tiền fall with the same acceleration g.
– In different places, the không tính tiền fall acceleration will not be the same:
– At the largest g pole: g = 9, 8324m/s2
– At the equator, g is the smallest: g = 9, 7872m/s2
– If high accuracy is not required, we can take g = 9.8m/s2 or g = 10m/s²
II. Exercises to apply
Exercise 1: An object falls freely from a height of 20m to the ground, g = 10m/s2.
a. Calculate the time it takes for the object to reach the ground.
b. Calculate the instantaneous velocity vector at the moment it hits the ground.
Solution guide:
a. S= v0t + 1/2 gt2 →t= 2Sg = 2sS = 1/2 gt2 →t= 2Sg = 2s
b. v = gt = 20 m/s
Exercise 2: An object is dropped without the initial instantaneous velocity vector at the moment it hits the ground with v = 70m/s, g = 10m/s2
a. Determine the falling distance of the object.
b. Calculate the time of falling of the object.
Solution guide:
a/ v2 – v02 = 2.gS → S = v2−v02 = 245m
b/ v = gt → t = 7s
Exercise 3: From a height of 120m, a person drops a vertical object with v = 10m/s, g = 10m/s2.
a. How long does it take for the object to hit the ground?
b. Calculate the instantaneous velocity of the object when it hits the ground.
Solution guide:
a. S = v0t + 1/2 gt2 ⇔ 100 = 20t + t2 → t = 4s ( receive ) or t = -6s ( type )
b/ v = v0 + gt = 50 m/s
Exercise 4: Drop a stone from a height h, the stone falls in 1s. If the stone is dropped from h’ = 4h, how long will it take to fall?
Solution guide:
h = 1/2 gt2 → t = 2hg = 1 → t = 2hg = 1
h’ = 1/2 gt2 → t1 = 2hg = 2.4hg = 2s → t1 = 2hg = 2.4hg = 2s
Exercise 5: An object falling freely when it hits the ground will reach v = 30m/s. From what height is the object dropped? g = 9.8m/s2.
Solution guide:
v = v0 + gt2 = 3.06s
Distance of falling object: h = S = 1/2 gt2 = 45.9m
Lesson 6: People drop an object in không tính tiền fall, after 4s the object hits the ground, g = 10m/s2. Determined.
a. Calculate the height when the object is dropped.
b. Instantaneous velocity vector when it hits the ground.
c. The height of the object after being released is 2s.
Solution guide:
a/ h = S = 1/2 gt2 = 80m
b/ v = v0 + gt = 40 m/s
c/ Distance the object falls first 2s: S1 = 1/2 gt2 = 20m
The height of the object after dropping 2s: h = S2 = S – S1 = 60m
Posted by: Tran Hung Dao High School
Category: Grade 10, Physics 10
#Choose #statement #wrong #about #movement #falling #self
[rule_2_plain]
#Choose #statement #wrong #about #movement #falling #self
[rule_2_plain]
#Choose #statement #wrong #about #movement #falling #self
[rule_3_plain]
#Choose #statement #wrong #about #movement #falling #self
Correct answers and explanations of multiple-choice questions: “Choose the wrong statement about free-falling motion” along with relevant theoretical knowledge is a useful document in Physics compiled by Tran Hung Dao High School for students. students and teachers for reference.
Quiz: Choose the incorrect statement about không tính tiền fall motion
A. It is a uniformly accelerated linear motion
B. At the initial instant the object’s instantaneous velocity vector is always zero
C. At every point we consider the object’s falling acceleration to be the same
D. Vertical and top-down motion
Answer:
Answer: B. At the initial instant the object’s instantaneous velocity vector is always zero
Join Tran Hung Dao High School to perfect your knowledge through the study about không tính tiền fall movement below.
Quick view of content1 Extended knowledge of free-falling motion1.1 I. Airdrops1.2 II. Exercises to apply
Extended knowledge of không tính tiền fall motion
I. The fall in the air
1. The fall of objects in the air.
– Objects falling in the air happen at different speed and slowness because the air resistance acting on them is not the same.
– Drop 2 sheets of A4 paper at the same height h above the ground, one sheet of paper is rounded, we notice that the rounded paper always falls first.
2. Falling of objects in a vacuum (không tính tiền fall).
– If the effect of air is excluded, all objects will fall at the same speed. The fall of the objects in this case is called không tính tiền fall.
– Không lấy phí fall (không tính tiền fall motion) is the fall of objects under the influence of gravity only.
a. What is my leg?
– Absolute vacuum is a medium without matter and energy, relative vacuum is a low-pressure environment (simply understood as the medium that has almost all of the air removed) The concept of không tính tiền fall (movement không tính tiền fall) is the fall of objects under the influence of gravity only
b. Properties of không tính tiền fall motion
– Direction, direction: objects fall freely in the vertical direction, from the top down.
Properties: Không lấy phí fall is a uniformly accelerated straight-line motion.
c. Formula of không tính tiền fall motion
In there:
– s: distance the object can fall (m)
– v: the instantaneous velocity vector of the object at time t (s)
– g: acceleration of không tính tiền fall (m/s2)
d. Không lấy phí fall acceleration.
– At a certain place on the Earth and near the ground, all objects are in không tính tiền fall with the same acceleration g.
– In different places, the không tính tiền fall acceleration will not be the same:
– At the largest g pole: g = 9, 8324m/s2
– At the equator, g is the smallest: g = 9, 7872m/s2
– If high accuracy is not required, we can take g = 9.8m/s2 or g = 10m/s²
II. Exercises to apply
Exercise 1: An object falls freely from a height of 20m to the ground, g = 10m/s2.
a. Calculate the time it takes for the object to reach the ground.
b. Calculate the instantaneous velocity vector at the moment it hits the ground.
Solution guide:
a. S= v0t + 1/2 gt2 →t= 2Sg = 2sS = 1/2 gt2 →t= 2Sg = 2s
b. v = gt = 20 m/s
Exercise 2: An object is dropped without the initial instantaneous velocity vector at the moment it hits the ground with v = 70m/s, g = 10m/s2
a. Determine the falling distance of the object.
b. Calculate the time of falling of the object.
Solution guide:
a/ v2 – v02 = 2.gS → S = v2−v02 = 245m
b/ v = gt → t = 7s
Exercise 3: From a height of 120m, a person drops a vertical object with v = 10m/s, g = 10m/s2.
a. How long does it take for the object to hit the ground?
b. Calculate the instantaneous velocity of the object when it hits the ground.
Solution guide:
a. S = v0t + 1/2 gt2 ⇔ 100 = 20t + t2 → t = 4s ( receive ) or t = -6s ( type )
b/ v = v0 + gt = 50 m/s
Exercise 4: Drop a stone from a height h, the stone falls in 1s. If the stone is dropped from h’ = 4h, how long will it take to fall?
Solution guide:
h = 1/2 gt2 → t = 2hg = 1 → t = 2hg = 1
h’ = 1/2 gt2 → t1 = 2hg = 2.4hg = 2s → t1 = 2hg = 2.4hg = 2s
Exercise 5: An object falling freely when it hits the ground will reach v = 30m/s. From what height is the object dropped? g = 9.8m/s2.
Solution guide:
v = v0 + gt2 = 3.06s
Distance of falling object: h = S = 1/2 gt2 = 45.9m
Lesson 6: People drop an object in không tính tiền fall, after 4s the object hits the ground, g = 10m/s2. Determined.
a. Calculate the height when the object is dropped.
b. Instantaneous velocity vector when it hits the ground.
c. The height of the object after being released is 2s.
Solution guide:
a/ h = S = 1/2 gt2 = 80m
b/ v = v0 + gt = 40 m/s
c/ Distance the object falls first 2s: S1 = 1/2 gt2 = 20m
The height of the object after dropping 2s: h = S2 = S – S1 = 60m
Posted by: Tran Hung Dao High School
Category: Grade 10, Physics 10
[/box]
#Chọn #phát #biểu #sai #về #chuyển #động #rơi #tự
[rule_3_plain]
#Chọn #phát #biểu #sai #về #chuyển #động #rơi #tự
[rule_1_plain]
#Chọn #phát #biểu #sai #về #chuyển #động #rơi #tự
[rule_2_plain]
#Chọn #phát #biểu #sai #về #chuyển #động #rơi #tự
[rule_2_plain]
#Chọn #phát #biểu #sai #về #chuyển #động #rơi #tự
[rule_3_plain]
#Chọn #phát #biểu #sai #về #chuyển #động #rơi #tự
[rule_1_plain]
[/toggle]
Phân mục: Ngữ văn lớp 6
#Chọn #phát #biểu #sai #về #chuyển #động #rơi #tự
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