student could push a 50Kg box, or pull it, with a force that forms an angle of 300 with the horizontal, to move it 15 m along a horizontal surface. The coefficient of kinetic friction between the box and the surface is 0.20. A) Pulling the box requires 1, less, 2, the same or 3, more work than pushing it. b) Calculate the minimum work required both to pull the box and to push it.

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