A baseball (m = 155 g) approaches a bat horizontally ata speed of 39.1 m/s (87.5 mi/h) and is hit straight back at a speedof 48.6 m/s (109 mi/h). If the ball is in contact with the bat fora time of 1.93 ms, what is the average force exerted on the ball bythe bat? Neglect the weight of the bat, since it is so much lessthan the force of the bat. Choose the direction of the incomingball as the positive direction.