A bouncy ball with mass m =50, kg is moving toward the wall at v = 20 m/s
and at an angle of 0 = 45° with respect to the horizontal. The ball makes a perfectly elastic
collision with the solid, frictionless wall and rebounds at the same angle with respect to the
horizontal. The ball is in contact with the wall for t = 0.5s,
What is the change in momentum AP of the bouncy ball? (3 pts)
What is the average force F the wall exerts on the bouncy ball (3 pts)
