Answer
A bouncy ball is dropped at chest height and the rebound properties are tested. It rebounds approximately 80% of the original height.
Work Step by Step
As the object drops down, the speed of the object increases. This is shown by the acceleration arrows pointing in the same direction. When it hits the ground, the object slows down. Then it bounces back in the same direction. It object does not reach the same height since the stopping point is located lower than the start point.