what is the work done by a weightlifter when he holds a weight of hundred kg on his shoulder for 1 minute why
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Answered by
14
Answer:
Work done = Force × Displacement
Man is holding a weight of 100 kg for 40 seconds but isn't moving around anywhere, there is no displacement of either the weight or the man, thus displacement = 0
Work done = Force × 0
Work done = 0
Thus, no work is done by the weight lifter.
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Answered by
4
Answer:
Work done by Wieghtlifter in holding 80kg for 2 minutes =0.
This is becuase the force applied by weightlifter results in no net displacement of 80kg mass W=Fdcosθ=0.
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