Force of gravity does the crane do on the ball
A crane lifts a ball weighing 2 x 10^4 N by 40 m in 2 seconds.
A) How much work against the force of gravity does the crane do on the ball?
B) how much power is necessary to perform this work?
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A crane lifts a ball weighing 2 x 10^4 N by 40 m in 2 seconds. A) How much work against the force of gravity does the crane do on the ball?
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