A man pushes on a piano with a mass of 180 kg so that it slides at constant velocity down a ramp that is inclined at 11 deg above the horizontal floor. Neglect any friction acting on the piano. Calculate the magnitude of the force applied by the man if he pushes parallel to the incline .

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Author:Paul W. Zitzewitz
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Chapter4: Forces In One Dimension
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A man pushes on a piano with a mass of 180 kg so that it slides at constant velocity down a ramp that is inclined at 11 deg above the horizontal floor. Neglect any friction acting on the piano. Calculate the magnitude of the force applied by the man if he pushes parallel to the incline .

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