A sledge loaded with bricks has a total mass of 170 kg and, Ask an Expert

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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 20.0° above the horizontal, and the sledge moves a distance of 20.0 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.400.

(a) What is the tension in the rope?

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

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