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Achild is pushing a toy chest across a rough floor with a constant force of 140 n directed at 30° below the horizontal. the mass of the child is 20 kg and the coefficient of friction between the chest and the floor is 0.46. the chest is pushed a distance of 2.0 m at constant speed. what is the work done by the force of the child?
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Achild is pushing a toy chest across a rough floor with a constant force of 140 n directed at 30° be...
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