## Climbing

Question

A 71 kgkg hiker climbs to the top of a 3900 mm -high mountain. The climb is made in 5.5 hh starting at an elevation of 2700 m

Calculate the work done by the hiker against gravity.

Calculate the average power output in watts.

Calculate the average power output in horsepower.

Calculate assuming the body is 15% efficient, what rate of energy input was required.

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General Physics
1 year
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