- #1
master_333
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Homework Statement
A 0.150-kg baseball, thrown with a speed of 40.0 m/s, is hit straight back at the pitcher with a speed of
50.0 m/s. (a) What is the magnitude of the impulse delivered by the bat to the baseball? (b) Find the magnitude of the average force exerted by the bat on the ball if the two are in contact for 2.00 * 10 ^-3 s.
Homework Equations
I = change in momemtum
The Attempt at a Solution
I don't know why doing it this way works out.
I = (0.150kg)(40m/s)
I = 6 kg*m/s
I = (0.150kg)(50m/s)
I = 7.5 kg*m/s
I (total) = 6 + 7.5 = 13.5 kg*m/s