A 75.0-kg cross-country skier is climbing a 3.0 slope at a constant speed of 2.00 m/s and
Question:
A 75.0-kg cross-country skier is climbing a 3.0° slope at a constant speed of 2.00 m/s and encounters air resistance of 25.0 N. Find his power output for work done against the gravitational force and air resistance.
(b) What average force does he exert backward on the snow to accomplish this?
(c) If he continues to exert this force and to experience the same air resistance when he reaches a level area, how long will it take him to reach a velocity of 10.0 m/s?
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Step by Step Answer:
a To find the skiers power output we need to calculate the net force acting on him and then multiply that force by his velocity The net force is the s...View the full answer
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