ICSE - X - Physics - Work, Energy and Power
A coolie X is carrying a load on his head climbs up a slope and another Y carrying the identical load on his head moves the same distance on the frictionless horizontal platform.Who does more work? Explain the reason
Coolie X carrying a load up a slope will do more work.
Work done will involve a change in potential energy,
Work done in carrying the load along horizontal platform will not have change in
also along the slope, the coolie has to apply a force equal to F=mgsinθ and on horizontal platform force F=mg.
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