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agadag
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Homework Statement
A pitcher throws a 0.124-kg baseball, and it approaches the bat at a speed of 54.2 m/s. The bat does Wnc = 76.5 J of work on the ball in hitting it. Ignoring the air resistance, determine the speed of the ball after the ball leaves the bat and is 21 m above the point of impact.
Homework Equations
W = E - E0
The Attempt at a Solution
W = E -Eo
76.5=.5(.124)v2-.124(9.8)21
102.0192=.062v2
v = wrong answer!
Please help. I don't have a basics in physics, so please explain from an beginners standpoint.
Thankyou!