Asked by john

A ball is dropped from a height of 1.45m and rebounds to a height of 1.21m. Approximately how many rebounds will the ball make before losing 92% of its energy?
Answered by Someone
Approximatley three
Answered by Damon
1 - .92 = .08 left

PE = m g h

PE2/PE1 = 1.21/1.45 = .8345

.8345^n = .08
n log .8345 = log .08
n = 13.96 or about 14

Answered by Shia
Just do it
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