How much work is done by a person lifting a 20-kg object
How much work is done by a person lifting a 2.0-kg object from the bottom of a well at a constant speed of 2.0 m/s for 5.0 s? (show how to solve please)
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how much work is done by a person lifting a 20-kg object from the bottom of a well at a constant speed of 20 ms for 50
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