Question

A baseball has a mass of 0.145 kg. (a) if the velocity of a pitched ball has a magnitude of 30.0 m/s and after the ball is hit by the bat the velocity is 45.0 m/s in the opposite direction, find the magnitude of the change in momentum of the ball and the impulse applied to it by the bat. (b) if the ball remains in contact with the bat for 2.00 ms, find the magnitude of the average force applied to the bat.