Question: When bunting a baseball player uses the bat to change

When bunting, a baseball player uses the bat to change both the speed and direction of the baseball.
(a) Will the magnitude of the change in momentum of the baseball before and after the bunt be (1) greater than the magnitude of the momentum of the baseball either before or after the bunt, (2) equal to the difference between the magnitudes of momenta of the baseball before and after the bunt, or (3) equal to the sum of the magnitudes of momenta of the baseball before and after the bunt? Why?
(b) The baseball has a mass of 0.16 kg; its speeds before and after the bunt are 15 m/s and 10 m/s, respectively; the bunt lasts 0.025 s. What is the change in momentum of the baseball?
(c) What is the average force on the ball by the bat?

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  • CreatedAugust 29, 2015
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