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A 50.0-kg skier starting from rest travels 200 m down a hill that has a 60.0°...

A 50.0-kg skier starting from rest travels 200 m down a hill that has a 60.0° slope and a uniform surface. When the skier reaches the bottom of the hill, her speed is 20.0 m/s. What is the magnitude of the friction force if the skier travels directly down the hill? Please show work. A. 375 N B. 55.3 N C. 89.4 N D. 50.0 N E. 20.7 N

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Answer: A. 375 N

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