## Question:

The ball of mass ${ m }_{ b }$ is thrown at the suspended block of mass ${ m }_{ B }$ with velocity ${ v }_{ b }$. If the coefficient of restitution between the ball and the block is e, determine the maximum height h to which the block will swing before it momentarily stops. Given: ${ m }_{ b }$ = 2 kg , ${ m }_{ B }$ = 20 kg , e = 0.8 , ${ v }_{ b }$ = 4 m/s , g = ${ 9.81 m/s }^{ 2 }$