Figure 1 shows the velocity-versus-time graph for a basketball player traveling

Question

Figure 1 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 over segment A.
A) 2 m
B) 4 m
C) 8 m
D) 16 m
13. Figure 2 represents the position of a particle as it travels along the x-axis. At what value of t
is the speed of the particle equal to zero?
A) 0 s
B) 1 s
C) 2 s
D) 3 s
E) 4 s
14. A student adds two displacement vectors that have the magnitudes of 12.0 m and 5.0 m.
What is a possible answer for the magnitude of the resultant vector?
A) 5 m
B) 12 m
C) 18 m
D) 24 m
15. Which of the following is a vector quantity?
A) time
B) mass
C) volume
D) displacement
E) speed
16. If a vector has components Ax > 0, and Ay > 0, then the angle that this vector makes with
the positive x-axis must be in the range
A) 0° to 90°.
B) 90° to 180°.
C) 180° to 270°.
D) 270° to 360°.
E) cannot be determined without
additional information
17. Two vectors and are added together giving vector . The magnitude of C is such that
C = . If the magnitudes of both vectors and are doubled, the magnitude of
vector will
A) increase by a factor of 8.
B) increase by a factor of 4.
C) increase by a factor of 2.
D) increase by a factor of .
E) not change.
4
18. If the acceleration of an object is always directed perpendicular to its velocity, then
A) the object is speeding up.
B) the object is slowing down.
C) the object is moving with a constant velocity.
D) the object is turning.
E) this situation would not be physically possible
19. Two objects are thrown vertically upwards simultaneously, one on the surface of Earth and
the other on the surface of the Moon (which has 1/6 the surface gravity of the Earth). Both
have an initial velocity of 20 m/s. Which object will take longer to reach the highest point of
their trajectory?
A) The object on the Earth
B) The object on the Moon
C) They will both take the same time.
20. For general projectile motion, the horizontal component of a projectile's velocity
A) is zero.
B) remains a constant.
C) continuously increases.
D) continuously decreases.
E) any of the above, depending on
position.

Explanation / Answer

20. For general projectile motion, the horizontal component of a projectile's velocity
A) is zero.
B) remains a constant.
C) continuously increases.
D) continuously decreases.
E) any of the above, depending on
position.

19. Two objects are thrown vertically upwards simultaneously, one on the surface of Earth and
the other on the surface of the Moon (which has 1/6 the surface gravity of the Earth). Both
have an initial velocity of 20 m/s. Which object will take longer to reach the highest point of
their trajectory?
A) The object on the Earth
B) The object on the Moon
C) They will both take the same time.

18. If the acceleration of an object is always directed perpendicular to its velocity, then
A) the object is speeding up.
B) the object is slowing down.
C) the object is moving with a constant velocity.
D) the object is turning.
E) this situation would not be physically possible

17. Two vectors and are added together giving vector . The magnitude of C is such that
C = . If the magnitudes of both vectors and are doubled, the magnitude of
vector will
A) increase by a factor of 8.
B) increase by a factor of 4.
C) increase by a factor of 2.
D) increase by a factor of .
E) not change.

16. If a vector has components Ax > 0, and Ay > 0, then the angle that this vector makes with
the positive x-axis must be in the range
A) 0° to 90°.
B) 90° to 180°.
C) 180° to 270°.
D) 270° to 360°.
E) cannot be determined without
additional information

15. Which of the following is a vector quantity?
A) time
B) mass
C) volume
D) displacement
E) speed

14. A student adds two displacement vectors that have the magnitudes of 12.0 m and 5.0 m.
What is a possible answer for the magnitude of the resultant vector?
A) 5 m
B) 12 m
C) 18 m
D) 24 m

Here magnitude is 13 m, but in above options it is not mentioned.

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