Ccalculate the workdone in rising a stone of mass 5 kg and specific gravity 3 lying atthe bed of a lake through a height of 5m.
Ccalculate the workdone in rising a stone of mass 5 kg and specific gravity 3 lying atthe bed of a lake through a height of 5m.
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m=5kg , g=3 ,h=5m
we have
work done=mgh=5×3×5=75j answer