A baseball player pitches a fastball toward home plate at a speed of 43 m/s.

A baseball player pitches a fastball toward home plate at a speed of 43 m/s. The batter swings, connects with the ball of mass 143 g, and hits it so that the ball leaves the bat with a speed of 38 m/s. Assume that the ball is moving horizontally just before and just after the collision with the bat.