A batter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. The ball remains in contact with the bat for 2.0 ms. Required:
What is the magnitude of the average force exerted by the bat on the ball?

4900 N

Explanation:

Given :

We know that the newton second law  The force * time is directly proportional to the change in the momentum .It means force *time is equal to change in ,momentum

it can be written as

Putting the value of m ,v2 ,v1 and t in the previous equation we get

On solving

013222

52222222222222222222222222222222222

explanation: