The coefficient of kinetic friction is 0.400. illustrate, Ask an Expert

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A 1.20x10^2 kg crate is being pushed across a horizontal floor by a force P that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.400. What should be the magnitude of P, so that the net work done by it and the kinetic frictional force is zero?

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