A tennis ball bounces on the floor three times, and each time it loses 23.0% of its energy due to heating. How high does it bounce after the third time, if we released it 4.0 m from the floor?

Question

Quizplus · Accepted Answer

After each bounce, the ball retains 77% (100% - 23%) of its energy. After three bounces, it retains 0.77^3 of its initial energy. The initial height is 4.0 m, so the height after the third bounce is 4.0 m * 0.77^3 = 1.8 m or 180 cm.

A Tennis Ball Bounces on the Floor Three Times, and Each