A 0.145 kg baseball is pitched at 42 m/s. The batter hits it horizontally to the pitcher at 58 m/s.
A.Find the change in momentum of the ball.
B. If the ball and bat are in contact for 4.6X10^-4 s, what is the average force during contact?

Question

alfie · Answer

Do you know what impulse is?

anonymous · Answer

not really. its the change in momentum , right?

alfie · Answer

Right. So you want to find the impulse.

$$\Delta \rho = I$$

Momentum = mass * velocity.
You have the mass, you have the velocity.

alfie · Answer

Then the second question, you can see the relation between impulse and Force.

Impulse = Force * time.

So the force = impulse/time.
:)

anonymous · Answer

Okay, thank you ^^

alfie · Answer

You're welcome.