Question

A racquet ball with mass m = 0.252 kg is moving toward the wall at v = 18.2 m/s and at an angle of θ = 25° 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 = 0.06 s.

1)

What is the magnitude of the initial momentum of the racquet ball?

kg-m/s

2)

What is the magnitude of the change in momentum of the racquet ball?

kg-m/s

3)

What is the magnitude of the average force the wall exerts on the racquet ball?

N

4)

Now the racquet ball is moving straight toward the wall at a velocity of v_i = 18.2 m/s. The ball makes an inelastic collision with the solid wall and leaves the wall in the opposite direction at v_f = -11.1 m/s. The ball exerts the same average force on the ball as before.

What is the magnitude of the change in momentum of the racquet ball?

kg-m/s

5)

What is the time the ball is in contact with the wall?

s

6)

What is the change in kinetic energy of the racquet ball?

J

Answer 1

Allowed to answer only 4 sub parts at a time According to the HOMEWORKLIB RULES.