How much work is done by the rope on the sledge


A sledge loaded with bricks has a total mass of 17.0 kg and is pulled at constant speed by a rope. The rope is inclined at 20.4° above the horizontal, and the sledge moves a distance of 19.5 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.500.

(a) What is the tension of the rope?

(b) How much work is done by the rope on the sledge?

(c) What is the mechanical energy lost due to friction?

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Physics: How much work is done by the rope on the sledge
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