At a baseball game, a ball of mass m = 0.15 kg moving at a speed v = 30 m/s is caught by a fan.
(a) Show that the impulse supplied to bring the ball to rest is 4.5 N · s.
(b) Show that if the ball is stopped in 0.02 s, then the average force of the ball on the catcher’s hand is 225 N.