[" 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 of each bounce.After each bounne-the ball rebounds to a height habove the next lowers the .Neglect "],[" width of each step in comparison to hand assume the impacts to be effectively head on.Which of the following "],[" relation is correct? (given that h>d) "],[[" (1) "(h)/(d)=1-e^(2)," (2) "(h)/(d)=1-e," (3) "(h)/(d)=(1)/(1-e^(2))," (4) "(h)/(d)=(1)/(1-e)]]