Posted by **Alemu** on Thursday, December 3, 2009 at 3:27pm.

A baseball of mass 250g, pitched with a speed of 40m/s, is caught by a catcher, whose glove moves backward 0.25m while stopping the ball.

a)what is the kenetic energy of the ball?

b)how much work did the catcher's glove do on the ball?

c) what was the average stopping force on the ball?

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