1. the position and You throw a ball. Air resistance on the ball is negligible. Which of the following
velocity of the functions change with time as the ball flies through the air?
ball
only the position of the ball
only the velocity of the ball
only the acceleration of the ball
the position and velocity of the ball
the position and the velocity and acceleration of the ball
2. Either press the You are driving a car at 65 mph. You are traveling north along a straight highway.
gas or the brake What could you do to give the car a nonzero acceleration?
pedal or turn the
steering wheel. Press the brake pedal.
Turn the steering wheel.
Either press the gas or the brake pedal.
Either press the gas or the brake pedal or turn the steering wheel.
3. the position and A ball is lodged in a hole in the floor near the outside edge of a merry-go-round
velocity and ac- that is turning at constant speed. Which kinematic variable or variables change
celeration of the with time, assuming that the position is measured from an origin at the center of
ball the merry-go-round?
, Mastering Physics 3 Test Questions with Answers Graded A+
the position of the ball only
the velocity of the ball only
the acceleration of the ball only
both the position and velocity of the ball
the position and velocity and acceleration of the ball
4. no
5. B Which of the paths would the cannonball most likely follow if the cannon barrel is
horizontal?
A
B
C
D
6. A constant down- Now the cannon is pointed straight up and fired. (This procedure is not recom-
ward accelera- mended!) Under the conditions already stated (drag is to be ignored) which of
tion the following correctly describes the acceleration of the ball?