Impact - Example Problem 9.4-3

 

A steel sphere is dropped from rest from a height of 0.5 m above a marble countertop. The sphere rebounds to a height of 0.4 m following the impact. Determine the coefficient of restitution e for this situation.

 

 

Given:

• v₁ = 0
• h₁ = 0.5 m
• h₂ = 0.4 m

 

Find:

• e

 

Determine the speed of the sphere just before it hits the ground.

 

v = m/s