4-11. The 5-kg ball has a horizontal initial
velocity 
. If the coefficient of restitution between the ball and the 20-kg
block is 
. Determine the velocity of the block just after the ball
hits it.
Solution:
4-11. The 5-kg ball has a horizontal initial
velocity . If the coefficient of restitution between the ball and the 20-kg
block is . Determine the velocity of the block just after the ball
hits it.
Solution: