A village woman pulls a bucket of water of mass 12kg from a well 20m deep in 0.5minutes. Calculate total work done by woman against gravity. Take g=10ms^-2. From ch work and energy.
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w=mgh 12*20*10=120*20=2400j
é=work done / time
2400/0.5=48 J
é=work done / time
2400/0.5=48 J
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