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a sledge loaded with bricks has a total mass of 18.3 kg and is pulled at...

a sledge loaded with bricks has a total mass of 18.3 kg and is pulled at a constant speed by a rope inclined at 20.5 degrees above the horizontal. The sledge moves a distance of 19.1 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.500

a. what is the tension in the rope?

N

b. how much work is done by the rope on the sledge?

kJ

c. what is the mechanical energy lost due to friction?

kJ

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