A batter swings at a baseball
(mass 0.145 kg) that is moving horizontally toward
him at a speed of 40.0 m/s. He hits a line drive
with the ball moving away from him horizontally
at 50.0 m/s just after it leaves the bat.
Part A
If the bat and ball are in contact
for 8.00 ms, what is the average force that the bat
applies to the ball?
Express your answer with the appropriate units.