Question 1

To determine the height of a bridge above the water,a person drops a stone and measures the time it takes for it to hit the water.If the height of the bridge is 41 m,how long will it take for the stone to hit the water? Neglect air resistance.

Accepted Answer

A) 2.3 s 
B) 2.6 s 
C) 2.9 s 
D) 3.2 s 
E) 3.6 s

Question 2

A car moving initially with speed v0 slows down with an acceleration of magnitude a and comes to a full stop after traveling a distance d.What was the speed of the car when it had traveled half that distance,d/2?

Accepted Answer

A) v0/2 
B) v0/4 
C) v0/  
D) v0/8

Question 3

A ball is projected upward at time t = 0 s,from a point on a flat roof 10 m above the ground.The ball rises and then falls with insignificant air resistance,missing the roof,and strikes the ground.The initial velocity of the ball is 58.5 m/s.  Consider all quantities as positive in the upward direction.At time t= 5.97 s, The vertical velocity of the ball is closest to

Accepted Answer

A) 0 m/s. 
B) +175 m/s. 
C) +12 m/s. 
D) -175 m/s. 
E) -12 m/s.

Question 4

If the velocity of an object is zero,then that object cannot be accelerating.

Accepted Answer

A) True 
 B)False

Question 5

A car starts from rest and accelerates uniformly at 3.0 m/s2 toward the north.A second car starts from rest 6.0 s later at the same point and accelerates uniformly at 5.0 m/s2 toward the north.How long after the second car starts does it overtake the first car?

Accepted Answer

A) 12 s 
B) 19 s 
C) 21 s 
D) 24 s

Question 6

Suppose that a car traveling to the west begins to slow down as it approaches a traffic light.Which of the following statements about its acceleration is correct?

Accepted Answer

A) The acceleration is toward the east. 
B) Since the car is slowing down,its acceleration must be negative. 
C) The acceleration is zero. 
D) The acceleration is toward the west.

Question 7

A rock from a volcanic eruption is launched straight up into the air with no appreciable air resistance.Which one of the following statements about this rock while it is in the air is correct?

Accepted Answer

A) On the way up,its acceleration is downward and its velocity is upward,and at the highest point both its velocity and acceleration are zero. 
B) On the way down,both its velocity and acceleration are downward,and at the highest point both its velocity and acceleration are zero. 
C) Throughout the motion,the acceleration is downward,and the velocity is always in the same direction as the acceleration. 
D) The acceleration is downward at all points in the motion. 
E) The acceleration is downward at all points in the motion except that is zero at the highest point.

Question 8

A motorist travels for 3.0 h at 80 km/h and 2.0 h at 100 km/h.What is her average speed for the trip?

Accepted Answer

A) 85 km/h 
B) 88 km/h 
C) 90 km/h 
D) 92 km/h

Question 9

The velocity v(t)of a particle as a function of time is given by v(t)= (2.3 m/s)+ (4.1 m/s2)t - (6.2 m/s3)t2.What is the average acceleration of the particle between t = 1.0 s and t = 2.0 s?

Accepted Answer

A) -13 m/s2 
B) -15 m/s2 
C) 13 m/s2 
D) 15 m/s2 
E) 0 m/s2

Question 10

An airplane needs to reach a forward velocity of 203.0 km/h. To take off. On a 2000-m.  Runway,what is the minimum uniform acceleration necessary for the plane to take flight if it starts from rest?

Accepted Answer

A) 0.79 m/s2 
B) 0.87 m/s2 
C) 0.95 m/s2 
D) 1.0 m/s2

Question 11

A car starting from rest accelerates at a constant 2.0 m/s2 for 10 s.It then travels with constant speed it has achieved for another 10 s.Then it finally slows to a stop with constant acceleration of magnitude 2.0 m/s2.How far does it travel after starting?

Accepted Answer

A) 200 m 
B) 300 m 
C) 400 m 
D) 500 m

Question 12

A laser is thrown upward with a speed of 12 m/s on the surface of planet X where the acceleration due to gravity is 1.5 m/s2 and there is no atmosphere.What is the maximum height reached by the laser?

Accepted Answer

A) 8.0 m 
B) 18 m 
C) 48 m 
D) 144 m

Question 13

A car is moving with a constant acceleration.At time t = 5.0 s its velocity is 8.0 m/s in the forward direction,and at time t = 8.0 s its velocity is 12.0 m/s forward.What is the distance traveled in that interval of time?

Accepted Answer

A) 10 m 
B) 20 m 
C) 30 m 
D) 40 m 
E) 50 m

Question 14

The figure shows a graph of the velocity of an object as a function of time.What is the displacement of the object from 0 s to 8.0 s?

Accepted Answer

A) 20 m 
B) 40 m 
C) 60 m 
D) 80 m 
E) 100 m

Question 15

A jet plane is launched from a catapult on an aircraft carrier.In 2.0 s it reaches a speed of 42 m/s at the end of the catapult.Assuming the acceleration is constant,how far did it travel during those 2.0 s?

Accepted Answer

A) 16 m 
B) 24 m 
C) 42 m 
D) 84 m

Question 16

Consider a car that travels between points A and B.The car's average speed can be greater than the magnitude of its average velocity,but the magnitude of its average velocity can never be greater than its average speed.

Accepted Answer

A) True 
 B)False

Question 17

When a ball is thrown straight up with no air resistance,the acceleration at its highest point

Accepted Answer

A) is upward. 
B) is downward. 
C) is zero. 
D) reverses from upward to downward. 
E) reverses from downward to upward.

Question 18

An object is thrown upwards with a speed of 16 m/s.How long does it take it to reach a height of 7.0 m on the way up? Neglect air resistance.

Accepted Answer

A) 0.52 s 
B) 1.2 s 
C) 2.4 s 
D) 3.1 s 
E) 4.2 s

Question 19

An airplane travels at 300 mi/h south for 2.00 h and then at 250 mi/h north for 750 miles.What is the average speed for the trip?

Accepted Answer

A) 260 mi/h 
B) 270 mi/h 
C) 275 mi/h 
D) 280 mi/h

Question 20

An airplane starts from rest and accelerates at a constant 10.8 m/s2.What is its speed at the end of a 400 m-long runway?

Accepted Answer

A) 37.0 m/s 
B) 93.0 m/s 
C) 65.7 m/s 
D) 4320 m/s 
E) 186 m/s

Exam 2: One-Dimensional Kinematics

To determine the height of a bridge above the water,a person drops a stone and measures the time it takes for it to hit the water.If the height of the bridge is 41 m,how long will it take for the stone to hit the water? Neglect air resistance.

A car moving initially with speed v₀ slows down with an acceleration of magnitude a and comes to a full stop after traveling a distance d.What was the speed of the car when it had traveled half that distance,d/2?

If the velocity of an object is zero,then that object cannot be accelerating.

A car starts from rest and accelerates uniformly at 3.0 m/s² toward the north.A second car starts from rest 6.0 s later at the same point and accelerates uniformly at 5.0 m/s² toward the north.How long after the second car starts does it overtake the first car?

Suppose that a car traveling to the west begins to slow down as it approaches a traffic light.Which of the following statements about its acceleration is correct?

A rock from a volcanic eruption is launched straight up into the air with no appreciable air resistance.Which one of the following statements about this rock while it is in the air is correct?

A motorist travels for 3.0 h at 80 km/h and 2.0 h at 100 km/h.What is her average speed for the trip?

The velocity v(t) of a particle as a function of time is given by v(t) = (2.3 m/s) + (4.1 m/s²) t - (6.2 m/s³) t².What is the average acceleration of the particle between t = 1.0 s and t = 2.0 s?

An airplane needs to reach a forward velocity of 203.0 km/h. To take off. On a 2000-m. Runway,what is the minimum uniform acceleration necessary for the plane to take flight if it starts from rest?

A car starting from rest accelerates at a constant 2.0 m/s² for 10 s.It then travels with constant speed it has achieved for another 10 s.Then it finally slows to a stop with constant acceleration of magnitude 2.0 m/s².How far does it travel after starting?

A laser is thrown upward with a speed of 12 m/s on the surface of planet X where the acceleration due to gravity is 1.5 m/s² and there is no atmosphere.What is the maximum height reached by the laser?

A car is moving with a constant acceleration.At time t = 5.0 s its velocity is 8.0 m/s in the forward direction,and at time t = 8.0 s its velocity is 12.0 m/s forward.What is the distance traveled in that interval of time?

The figure shows a graph of the velocity of an object as a function of time.What is the displacement of the object from 0 s to 8.0 s?

A jet plane is launched from a catapult on an aircraft carrier.In 2.0 s it reaches a speed of 42 m/s at the end of the catapult.Assuming the acceleration is constant,how far did it travel during those 2.0 s?

Consider a car that travels between points A and B.The car's average speed can be greater than the magnitude of its average velocity,but the magnitude of its average velocity can never be greater than its average speed.

When a ball is thrown straight up with no air resistance,the acceleration at its highest point

An object is thrown upwards with a speed of 16 m/s.How long does it take it to reach a height of 7.0 m on the way up? Neglect air resistance.

An airplane travels at 300 mi/h south for 2.00 h and then at 250 mi/h north for 750 miles.What is the average speed for the trip?

An airplane starts from rest and accelerates at a constant 10.8 m/s².What is its speed at the end of a 400 m-long runway?

Exam 2: One-Dimensional Kinematics

To determine the height of a bridge above the water,a person drops a stone and measures the time it takes for it to hit the water.If the height of the bridge is 41 m,how long will it take for the stone to hit the water? Neglect air resistance.

A car moving initially with speed v0 slows down with an acceleration of magnitude a and comes to a full stop after traveling a distance d.What was the speed of the car when it had traveled half that distance,d/2?

If the velocity of an object is zero,then that object cannot be accelerating.

A car starts from rest and accelerates uniformly at 3.0 m/s2 toward the north.A second car starts from rest 6.0 s later at the same point and accelerates uniformly at 5.0 m/s2 toward the north.How long after the second car starts does it overtake the first car?

Suppose that a car traveling to the west begins to slow down as it approaches a traffic light.Which of the following statements about its acceleration is correct?

A rock from a volcanic eruption is launched straight up into the air with no appreciable air resistance.Which one of the following statements about this rock while it is in the air is correct?

A motorist travels for 3.0 h at 80 km/h and 2.0 h at 100 km/h.What is her average speed for the trip?

The velocity v(t) of a particle as a function of time is given by v(t) = (2.3 m/s) + (4.1 m/s2) t - (6.2 m/s3) t2.What is the average acceleration of the particle between t = 1.0 s and t = 2.0 s?

An airplane needs to reach a forward velocity of 203.0 km/h. To take off. On a 2000-m. Runway,what is the minimum uniform acceleration necessary for the plane to take flight if it starts from rest?

A car starting from rest accelerates at a constant 2.0 m/s2 for 10 s.It then travels with constant speed it has achieved for another 10 s.Then it finally slows to a stop with constant acceleration of magnitude 2.0 m/s2.How far does it travel after starting?

A laser is thrown upward with a speed of 12 m/s on the surface of planet X where the acceleration due to gravity is 1.5 m/s2 and there is no atmosphere.What is the maximum height reached by the laser?

A car is moving with a constant acceleration.At time t = 5.0 s its velocity is 8.0 m/s in the forward direction,and at time t = 8.0 s its velocity is 12.0 m/s forward.What is the distance traveled in that interval of time?

The figure shows a graph of the velocity of an object as a function of time.What is the displacement of the object from 0 s to 8.0 s?

A jet plane is launched from a catapult on an aircraft carrier.In 2.0 s it reaches a speed of 42 m/s at the end of the catapult.Assuming the acceleration is constant,how far did it travel during those 2.0 s?

Consider a car that travels between points A and B.The car's average speed can be greater than the magnitude of its average velocity,but the magnitude of its average velocity can never be greater than its average speed.

When a ball is thrown straight up with no air resistance,the acceleration at its highest point

An object is thrown upwards with a speed of 16 m/s.How long does it take it to reach a height of 7.0 m on the way up? Neglect air resistance.

An airplane travels at 300 mi/h south for 2.00 h and then at 250 mi/h north for 750 miles.What is the average speed for the trip?

An airplane starts from rest and accelerates at a constant 10.8 m/s2.What is its speed at the end of a 400 m-long runway?

A car moving initially with speed v₀ slows down with an acceleration of magnitude a and comes to a full stop after traveling a distance d.What was the speed of the car when it had traveled half that distance,d/2?

A car starts from rest and accelerates uniformly at 3.0 m/s² toward the north.A second car starts from rest 6.0 s later at the same point and accelerates uniformly at 5.0 m/s² toward the north.How long after the second car starts does it overtake the first car?

The velocity v(t) of a particle as a function of time is given by v(t) = (2.3 m/s) + (4.1 m/s²) t - (6.2 m/s³) t².What is the average acceleration of the particle between t = 1.0 s and t = 2.0 s?

A car starting from rest accelerates at a constant 2.0 m/s² for 10 s.It then travels with constant speed it has achieved for another 10 s.Then it finally slows to a stop with constant acceleration of magnitude 2.0 m/s².How far does it travel after starting?

A laser is thrown upward with a speed of 12 m/s on the surface of planet X where the acceleration due to gravity is 1.5 m/s² and there is no atmosphere.What is the maximum height reached by the laser?

An airplane starts from rest and accelerates at a constant 10.8 m/s².What is its speed at the end of a 400 m-long runway?