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 steel ball and the floor = 0.60.

A steel ball is allowed to fall freely from a height of 36 cm onto a s

1.	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 steel ball and the floor = 0.60.
Answer» Solution :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`.