A sledge loaded with bricks has a total mass of 170 kg and


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?

N

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

J

(c) What is the increase in internal energy in the sledge and the surface due to friction?

J

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Physics: A sledge loaded with bricks has a total mass of 170 kg and
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