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A 7 kilogram bowling ball is dropped from a fourth story window. If each story is 3 meters high, use energy conservation (not the equations of motion) to find the ball's velocity when it strikes the ground. Ignore air resistance.

1/2 m v^2= mgh
v= sqrt (2g*(3+.5))

v=7.67 m/s

did I do this right? thanks

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