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Question #2 didn't understand the concept could you show me step by step on how to get the answer 2. A boy on a toboggan

Question #2 didn't understand the concept could you show me step by step on how to get the answer

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2. A boy on a toboggan is sliding down a snow-covered hill at a constant speed. The boy and toboggan have a total mass of 50 kg and the slope is at an angle of 30 to horizontal. Find the coefficient of kinetic friction. (0.58) 3. A 75 kg crate rests at the top of a ramp with a slope of 180, If the coefficient of kinetic friction

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