Homework Help: Physics

Posted by Ben on Monday, October 15, 2012 at 10:33am.

A pitcher throws a 0.140-kg baseball, and it approaches the bat at a speed of 50.0 m/s. The bat does Wnc = 65.0 J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 25.0 m above the point of impact.

Physics - bobpursley, Monday, October 15, 2012 at 11:20am
If you assume all this is elastic..

KEf=KEi+work done-changePE
KEi from initial speed; work done given, change PE=mg(25)

figure KE final. The, calculate Vf

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