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

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

battery with hi vtge high val resist in series