Question

A ball is dropped from a height h. If the coefficient of restitution be e, then the body rebounds to a height of

• A. $eh$
• B. $e^{2}h$
• C. $e^{3}h$
• D. $e^{4}h$

Answer 1

The correct option is B $e^{2}h$

Coefficient of restitution is defined as

$e=\sqrt{\frac{H}{h}}$

where h is the drop height and H is the bounce height.

So, $\frac{H}{h}=e^2$

$\Rightarrow H=e^{2}h$