Problem 1. A baseball bat hits a 149 g baseball. The velocity of the ball is shown below for before & after the bat-ball collision, which lasted 0.02 seconds. 40 m/s 60 m/s BEFORE 4. AFTER ._.; 1) What was the change in momentum of the ball? 2) What was the impulse on the ball? 3) What was the impulse on the hat? 4) What was the average force exerted on the ball