No work is done by gravity on a bowling ball that rolls along a bowling alley because
A)no force acts on the ball.
B)no distance is covered by the ball.
C)the force on the ball is at right angles to the ball's motion.
D)no potential energy is being converted to kinetic energy.
E)its kinetic energy remains constant.

Question

Quizplus · Accepted Answer

Gravity does no work on the ball because the force of gravity acts vertically downward, which is perpendicular to the horizontal motion of the ball along the alley. Work is only done when the force has a component in the direction of the motion.

No Work Is Done by Gravity on a Bowling Ball