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Suppose the ski patrol lowers a rescue sled and victim down a 60 degree slope at...

Suppose the ski patrol lowers a rescue sled and victim down a 60 degree slope at constant speed. The coefficient of friction between the sled and the snow is 0.100. The work due to gravity is 40,000J. What is the mass of the rescue sled and victim if lowered 30 m along the slope? image 79 kg 157 kg 137 kg Correct answer not shown 118 kg 92 kg

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