A 51-kg skier coasts up a snow-covered hill that makes an, Ask an Expert

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A 51-kg skier coasts up a snow-covered hill that makes an angle of 25° with the horizontal. The initial speed of the skier is 6.2m/s. After coasting 1.9 m up the slope, the skier has a speed of is 3.7 m/s.

(a) Find the work done by the kinetic frictional force that acts on the skis.

(b) What is the magnitude of the kinetic frictional force?

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