A steel ball is allowed to fall freely from a height of 36 cm onto a smooth floor. Find the height to which it rises after rebounding from the floor. Coefficient of restitution between the stee ball and the floow = 0.60.

Explanation

Here `e=0.60, h=36 cm = 36xx10^(-2)m`
The height attained by the body after .n. number of rebounds `= e^(2n)h`
Here n = 1
`therefore` The height attained by the body after `1^(st)` rebound
`= e^(2(1))h=(0.60)^(2)(36xx10^(-2))`
`= 0.36xx0.36=0.13 m`.