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A sled and rider have a total mass of 53.0 kg. They are on a snowy...

A sled and rider have a total mass of 53.0 kg. They are on a snowy hill accelerating at 0.8g. The coefficient of kinetic friction between the sled and the snow is 0.15. What is the angle of the hill's slope measured upward from the horizontal? You may find a spreadsheet program helpful in answering this question.

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