[3 points] A baseball pitcher throws a baseball at the hitte…

[3 points] A baseball pitcher throws a baseball at the hitter, who hits it on a horizontal drive straight back to the pitcher at 42 m/s. If the hitter, via the bat, exerts an average force of 2000 N on the ball over a time period of 6 ms, what is the magnitude of the change in momentum of the ball in kg·m/s?