How much energy required to lift a women of mass 73kg by a boy
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715.4h Joules (where "h" is in metres)
Explanation:
If the women is lifted by a height "h" then energy required is equal to the potential energy at that height.
Energy = mgh
= 73 kg × 9.8 m/s² × h
= (715.4 kg m/s²) × h
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