A ball is bouncing down a set of stairs. The coefficient of restitution is e. The height of each
Channel: Doubtnut
Date: 2020-01-28

A ball is bouncing down a set of stairs. The coefficient of restitution is e. The height of each step is d and the ball bounces one step at each bounce. After each bounce the ball rebounds to a height h above the next lower step. Neglect width of each step in comparison to h and assume the impacts to be effectively head on. Which of the following relative is correct ?