CHAPTER 11
Kinematics
1 . A cannonball is shot straight up in the air and then falls back to Earth. The force of air resistance is
given by the equation Fair = -bv 2 . If air resistance cannot be neglected, the acceleration of the
cannonball is
(A) constant while traveling upward.
(B) increasing while traveling upward.
(C) greater while traveling upward than while traveling downward.
(D) equal to 9.8 m/s^2 while traveling downward.
(E) constant while traveling downward.
2 . A shortstop throws a baseball to the first baseman. Which graphs correctly depict the horizontal
velocity and horizontal acceleration of the baseball while in flight, assuming air resistance can be
ignored?