# Question #2840e

##### 1 Answer

#### Explanation:

A free falling object from a height

If the object is just dropped we have

Coefficient of restitution

Using (1) we get

The object goes up with velocity as in (2) and returns, under gravity, with the same velocity directed downwards.

Therefore, Rebound velocity after second rebound is

Inserting given values and taking

Rebound velocity after second rebound is