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. little distance is covered by the ball.
C. the force on the ball is at right angles to the ball’s motion.
D. the ball’s speed remains constant.
Answer:C
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. little distance is covered by the ball. C. the force on the ball is at right angles to the ball’s motion. D. the ball’s speed remains constant.