Question

tennis ball bounces down of flight of stairs each step internal and rebonding to the height of the step above if the height of each step d the question of restitution is​

Answer 1

Answer: Using the third equation of motion, we get V initial = (2gh)(1/2) (As the ball falls a distance h above the next step.)

Also, V final = {2g(h-d)}(1/2) (The ball rises a height (h-d) above the step it strikes.)

Using the formula of coefficient of restitution,

we get

(h-d)/h=e2 ( the velocity of steps will be zero)

Rearranging,

h/d=1/(1-e2)

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