Question 1

FIGURE 2-8 
-Fig. 2-8 shows the velocity-versus-time graph for a basketball player traveling up and down the court in a straight-line path. Find the total distance run by the player in the 10 s shown in the graph.

Accepted Answer

A)  20 m
B)  18 m
C)  16 m
D)  14 m
E)  12 mF) B) and E)
G) B) and D)

Question 2

When is the average velocity of an object equal to the instantaneous velocity?

Accepted Answer

A)  always
B)  never
C)  only when the velocity is constant
D)  only when the velocity is increasing at a constant rate
E)  only when the velocity is decreasing at a constant rateF) A) and C)
G) A) and B)

Question 3

Suppose that an object travels from one point in space to another. Make a comparison between the displacement and the distance traveled.

Accepted Answer

A)  The displacement is either greater than or equal to the distance traveled.
B)  The displacement is always equal to the distance traveled.
C)  The displacement is either less than or equal to the distance traveled.
D)  The displacement can be either greater than, smaller than, or equal to the distance traveled.
E)  If the displacement is equal to zero, then the distance traveled will also equal zero.F) A) and B)
G) B) and E)

Question 4

FIGURE 2-10 
-Fig. 2-10 shows the position of an object as a function of time. What is the length of the path the object followed during the time interval from time t = 0.0 s and time t = 9.0 s?

Accepted Answer

A)  -1.0 m
B)  3.0 m
C)  1.0 m
D)  19.5 m
E)  5.0 mF) All of the above
G) A) and D)

Question 5

Which graph below could represent the motion of the object described in the following sentences? The object that starts its motion with a constant velocity of 2.0 m/s east. After 3.0 s, the object stops for 1.0 s. The object then moves toward the west a distance of 2.0 m in 3.0 s. The object continues traveling in the same direction, but increases its speed by 1.0 m/s for the next 2.0 s.

Accepted Answer

A)  
B)  
C)  
D)  
E)  None of the above graphs could represent the motion described.F) A) and B)
G) B) and E)

Question 6

The average velocity of a car traveling with a constant acceleration during a certain time interval is equal to the mean of the velocities at the beginning and end of that time interval.

Accepted Answer

A) True 
 B)False

Question 7

Under what condition is average velocity equal to the average of the object's initial and final velocity?

Accepted Answer

A)  The acceleration must be constantly increasing.
B)  The acceleration must be constantly decreasing.
C)  The acceleration must be constant.
D)  This can only occur if there is no acceleration.
E)  This is impossible.F) A) and E)
G) D) and E)

Question 8

FIGURE 2-8 
-Fig. 2-8 shows the velocity-versus-time graph for a basketball player traveling up and down the court in a straight-line path. Find the displacement of the player for each of the segments A, B, C and D.

Accepted Answer

A, 4 m; B,...

Question 9

A car is traveling north at 20.0 m/s at time t = 0.00 s. The same car is traveling north at 24.0 m/s at time t = 8.00 s. What statement is necessarily true about the acceleration of the car?

Accepted Answer

A)  The car undergoes constant acceleration of 0.500 m/s2 during the time from t = 0.00 s to t = 8.0 s.
B)  The car undergoes constant acceleration of 4.00 m/s2 during the time from t = 0.00 s to t = 8.0 s
C)  The car has zero acceleration during the time from t = 0.00 s to t = 8.0 s
D)  The average acceleration of the car is 0.500 m/s2 during the time from t = 0.00 s to t = 8.0 s
E)  The average acceleration of the car is 4.00 m/s2 during the time from t = 0.00 s to t = 8.0 sF) A) and C)
G) B) and E)

Question 10

When is the average acceleration of an object equal to the instantaneous acceleration?

Accepted Answer

A)  always
B)  never
C)  only when the acceleration is constant
D)  only when the acceleration is increasing at a constant rate
E)  only when the acceleration is decreasing at a constant rateF) C) and E)
G) C) and D)

Question 11

The position of an object is given as a function of time as x(t)  = (3.00 m/s) t + (2.00 m/s2) t2. What is the average velocity of the object between t = 0.00 s and t = 2.00 s?

Accepted Answer

A)  3.00 m/s
B)  11.0 m/s
C)  27.0 m/s
D)  13.0 m/s
E)  7.00 m/sF) B) and C)
G) D) and E)

Question 12

If the velocity versus time graph of an object is a horizontal line, the object is

Accepted Answer

A)  moving with constant non-zero speed.
B)  moving with constant non-zero acceleration.
C)  at rest.
D)  moving with infinite speed.
E)  none of the aboveF) A) and C)
G) A) and B)

Question 13

A car is traveling with a constant speed when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s2. If the car comes to a stop in a distance of 30.0 m, what was the car's original speed?

Accepted Answer

A)  10.2 m/s
B)  14.5 m/s
C)  105 m/s
D)  210 m/s
E)  315 m/sF) B) and D)
G) All of the above

Question 14

Arthur and Betty start walking toward each other when they are 100 m apart. Arthur has a speed of 3.0 m/s and Betty has a speed of 2.0 m/s. Their dog, Spot, starts by Arthur's side at the same time and runs back and forth between them at 5.0 m/s. By the time Arthur and Betty meet, what distance has Spot run?

Accepted Answer

The answer of Arthur and Betty start walking toward each...

Question 15

An object is moving with constant non-zero acceleration on the +x axis. The velocity versus time graph of this object is

Accepted Answer

A)  a horizontal straight line.
B)  a vertical straight line.
C)  a straight line making an angle with the time axis.
D)  a parabolic curve.
E)  a hyperbolic curve.F) B) and E)
G) A) and D)

Question 16

FIGURE 2-2 
-The motion of a particle is described in the velocity vs. time graph shown in Fig. 2-2. We can say that its speed

Accepted Answer

A)  increases.
B)  decreases.
C)  increases and then decreases.
D)  decreases and then increases.
E)  remains constant.F) B) and E)
G) A) and C)

Question 17

In a relay race, runner A is carrying the baton and has a speed of 3.00 m/s. When he is 25.0 m behind the starting line, runner B starts from rest and accelerates at 0.100 m/s2. How long afterwards will A catch up with B to pass the baton to B?

Accepted Answer

A)  5.17 s
B)  10.0 s
C)  11.9 s
D)  20.4 s
E)  A never catches up.F) All of the above
G) A) and B)

Question 18

An object is moving with constant non-zero velocity on the +x axis. The position versus time graph of this object is

Accepted Answer

A)  a horizontal straight line.
B)  a vertical straight line.
C)  a straight line making an angle with the time axis.
D)  a parabolic curve.
E)  a hyperbolic curve.F) C) and D)
G) A) and B)

Question 19

FIGURE 2-13 2 B) 1.7 m/ s2 C) 2.0 m/ s2 D) 2.5 m/ s2 E) 3.0 m/ s2" class="answers-bank-image d-inline" rel="preload" >
-Fig. 2-13 represents the velocity of a particle as it travels along the x-axis. What is the average acceleration of the particle between t = 1 second and t = 4 seconds?

Accepted Answer

A)  0.33 m/s2
B)  1.7 m/ s2
C)  2.0 m/ s2
D)  2.5 m/ s2
E)  3.0 m/ s2F) B) and C)
G) A) and E)

Question 20

A ball rolls across a floor with an acceleration of 0.10 m/s2 in a direction opposite to its velocity. The ball has a velocity of 4.00 m/s after rolling a distance 6.00 m across the floor. What was the initial speed of the ball?

Accepted Answer

A)  4.15 m/s
B)  5.85 m/s
C)  4.60 m/s
D)  5.21 m/s
E)  3.85 m/sF) None of the above
G) B) and E)

Exam 2: Describing Motion: Kinematics in One Dimension

The average velocity of a car traveling with a constant acceleration during a certain time interval is equal to the mean of the velocities at the beginning and end of that time interval.

Correct Answer
verified

FIGURE 2-2 -The motion of a particle is described in the velocity vs. time graph shown in Fig. 2-2. We can say that its speed

Correct Answer
verified

FIGURE 2-8 -Fig. 2-8 shows the velocity-versus-time graph for a basketball player traveling up and down the court in a straight-line path. Find the displacement of the player for each of the segments A, B, C and D.

Correct Answer
verified
A, 4 m; B,...
View Answer

Correct Answer
verified

An object is moving with constant non-zero velocity on the +x axis. The position versus time graph of this object is

Correct Answer
verified

When is the average velocity of an object equal to the instantaneous velocity?

Correct Answer
verified

When is the average acceleration of an object equal to the instantaneous acceleration?

Correct Answer
verified

Correct Answer
verified

Under what condition is average velocity equal to the average of the object's initial and final velocity?

Correct Answer
verified

FIGURE 2-10 -Fig. 2-10 shows the position of an object as a function of time. What is the length of the path the object followed during the time interval from time t = 0.0 s and time t = 9.0 s?

Correct Answer
verified

FIGURE 2-8 -Fig. 2-8 shows the velocity-versus-time graph for a basketball player traveling up and down the court in a straight-line path. Find the total distance run by the player in the 10 s shown in the graph.

Correct Answer
verified

A car is traveling with a constant speed when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s². If the car comes to a stop in a distance of 30.0 m, what was the car's original speed?

Correct Answer
verified

An object is moving with constant non-zero acceleration on the +x axis. The velocity versus time graph of this object is

Correct Answer
verified

FIGURE 2-13 -Fig. 2-13 represents the velocity of a particle as it travels along the x-axis. What is the average acceleration of the particle between t = 1 second and t = 4 seconds?

Correct Answer
verified

If the velocity versus time graph of an object is a horizontal line, the object is

Correct Answer
verified

A car is traveling north at 20.0 m/s at time t = 0.00 s. The same car is traveling north at 24.0 m/s at time t = 8.00 s. What statement is necessarily true about the acceleration of the car?

Correct Answer
verified

In a relay race, runner A is carrying the baton and has a speed of 3.00 m/s. When he is 25.0 m behind the starting line, runner B starts from rest and accelerates at 0.100 m/s². How long afterwards will A catch up with B to pass the baton to B?

Correct Answer
verified

Suppose that an object travels from one point in space to another. Make a comparison between the displacement and the distance traveled.

Correct Answer
verified

A ball rolls across a floor with an acceleration of 0.10 m/s² in a direction opposite to its velocity. The ball has a velocity of 4.00 m/s after rolling a distance 6.00 m across the floor. What was the initial speed of the ball?

Correct Answer
verified

The position of an object is given as a function of time as x(t) = (3.00 m/s) t + (2.00 m/s²) t². What is the average velocity of the object between t = 0.00 s and t = 2.00 s?

Correct Answer
verified

Exam 2: Describing Motion: Kinematics in One Dimension

The average velocity of a car traveling with a constant acceleration during a certain time interval is equal to the mean of the velocities at the beginning and end of that time interval.

Correct AnswerverifiedShow Answer

FIGURE 2-2 -The motion of a particle is described in the velocity vs. time graph shown in Fig. 2-2. We can say that its speed

Correct AnswerverifiedShow Answer

FIGURE 2-8 -Fig. 2-8 shows the velocity-versus-time graph for a basketball player traveling up and down the court in a straight-line path. Find the displacement of the player for each of the segments A, B, C and D.

Correct AnswerverifiedA, 4 m; B,...View AnswerShow Answer

Correct AnswerverifiedShow Answer

An object is moving with constant non-zero velocity on the +x axis. The position versus time graph of this object is

Correct AnswerverifiedShow Answer

When is the average velocity of an object equal to the instantaneous velocity?

Correct AnswerverifiedShow Answer

When is the average acceleration of an object equal to the instantaneous acceleration?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Under what condition is average velocity equal to the average of the object's initial and final velocity?

Correct AnswerverifiedShow Answer

FIGURE 2-10 -Fig. 2-10 shows the position of an object as a function of time. What is the length of the path the object followed during the time interval from time t = 0.0 s and time t = 9.0 s?

Correct AnswerverifiedShow Answer

FIGURE 2-8 -Fig. 2-8 shows the velocity-versus-time graph for a basketball player traveling up and down the court in a straight-line path. Find the total distance run by the player in the 10 s shown in the graph.

Correct AnswerverifiedShow Answer

A car is traveling with a constant speed when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s2. If the car comes to a stop in a distance of 30.0 m, what was the car's original speed?

Correct AnswerverifiedShow Answer

An object is moving with constant non-zero acceleration on the +x axis. The velocity versus time graph of this object is

Correct AnswerverifiedShow Answer

FIGURE 2-13 -Fig. 2-13 represents the velocity of a particle as it travels along the x-axis. What is the average acceleration of the particle between t = 1 second and t = 4 seconds?

Correct AnswerverifiedShow Answer

If the velocity versus time graph of an object is a horizontal line, the object is

Correct AnswerverifiedShow Answer

A car is traveling north at 20.0 m/s at time t = 0.00 s. The same car is traveling north at 24.0 m/s at time t = 8.00 s. What statement is necessarily true about the acceleration of the car?

Correct AnswerverifiedShow Answer

In a relay race, runner A is carrying the baton and has a speed of 3.00 m/s. When he is 25.0 m behind the starting line, runner B starts from rest and accelerates at 0.100 m/s2. How long afterwards will A catch up with B to pass the baton to B?

Correct AnswerverifiedShow Answer

Suppose that an object travels from one point in space to another. Make a comparison between the displacement and the distance traveled.

Correct AnswerverifiedShow Answer

A ball rolls across a floor with an acceleration of 0.10 m/s2 in a direction opposite to its velocity. The ball has a velocity of 4.00 m/s after rolling a distance 6.00 m across the floor. What was the initial speed of the ball?

Correct AnswerverifiedShow Answer

The position of an object is given as a function of time as x(t) = (3.00 m/s) t + (2.00 m/s2) t2. What is the average velocity of the object between t = 0.00 s and t = 2.00 s?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A, 4 m; B,...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

A car is traveling with a constant speed when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s². If the car comes to a stop in a distance of 30.0 m, what was the car's original speed?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

In a relay race, runner A is carrying the baton and has a speed of 3.00 m/s. When he is 25.0 m behind the starting line, runner B starts from rest and accelerates at 0.100 m/s². How long afterwards will A catch up with B to pass the baton to B?

Correct Answer
verified

Correct Answer
verified

A ball rolls across a floor with an acceleration of 0.10 m/s² in a direction opposite to its velocity. The ball has a velocity of 4.00 m/s after rolling a distance 6.00 m across the floor. What was the initial speed of the ball?

Correct Answer
verified

The position of an object is given as a function of time as x(t) = (3.00 m/s) t + (2.00 m/s²) t². What is the average velocity of the object between t = 0.00 s and t = 2.00 s?

Correct Answer
verified