How much work is done if a person holds a bag of 10 kg above his head and move 10 meter?
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No work is done by the person because the angle becomes 90° and the formula says. W = m*g*cos∅ {cos 90° = 0}
so, the whole will become :
W = m*g*0 = 0.
Thanks.
so, the whole will become :
W = m*g*0 = 0.
Thanks.
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