Question

A ball falls through a height h on a massive horizontal plate and rebounds to h find coefficient of restitiution

Answer 1

h₁ = height from which ball falls = h

h₂ = height to which ball bounce back  = h

e = coefficient of restitution for the plate

coefficient of restitution is the ratio of the height from which the ball is dropped to the height ball bounces back after colliding the surface

coefficient of restitution is given as

e = h₂ /h₁

inserting the above values in the formula

e = h/h

e = 1

hence the coefficient of restitution is "1"