How much work is done by brutus lifting the weights

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Reference no: EM13499099

Brutus, a champion weightlifter, raises 240 kg of weights a distance of 2.70 m.

(a) How much work is done by Brutus lifting the weights?

J

(b) How much work is done by Brutus holding the weights above his head?

J

(c) How much work is done by Brutus lowering them back to the ground?

J

Reference no: EM13499099

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