A boy pulls a 20 kilogram box with a 50 newton force at 37, Physics

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A boy pulls a 20 kilogram box with a 50 newton force at 37

A boy pulls a 20 kilogram box with a 50 Newton force at 37 degree above the horizontal surface. The coefficient of kinetic friction between the horizontal surface and the box is 0.15, and the box is pulled over a distance of 25 meter.

(a) Determine the work done by the boy?

(b) Determine the work done by the frictional force?

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Physics: A boy pulls a 20 kilogram box with a 50 newton force at 37

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