(a). A pitcher throws a 0.61 kg baseball horizontally with…
(a). A pitcher throws a 0.61 kg baseball horizontally with a speed of 25 m/s, the ball hits a wall and bounces straight back with a speed of 25 m/s. (i). What is the impulse (change in momentum) of the baseball? (2.0 points) (ii). If the ball is in contact with the wall for 0.04 s, what is the magnitude of the average force of the ball on the wall? (1.5 points) (b). How much work is done in bringing a 0.03 kg from rest to 25 m/s? (2.0 points)