Question

A basketball of mass 0.0400 kg is dropped from a height of 5.00 m to the ground and bounces back to a height of 3.00 m.

a. On its way down, how much potential energy does the ball lose?

b. On its way back, how much potential energy does the ball regain?

Answer 1

a)

$A_1=mgh_1=2.0~J,$

b)

$A_2=mgh_2=1.2~J.$