# Physics

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A horizontal force of 150 N is used to push a 33.0 kg packing crate a distance of 6.65 m on a rough horizontal surface. If the crate moves at constant speed and the work done is 997.5 joules. What is the coefficient of kinetic between the crate and the surface.

• Physics -

workin-friction=workdone
150*6.65- mg*mu*6.65=997.5
solve for mu.

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