A 70 kg hiker climbed a mountain 1000 m high. He reached the peak in 3 hr. fa) Calculate the external work done by the climber. (b) Assuming the work was done at a steady rate during the 3 hr period, calculate the power generated during the climb. (c) Assuming the average 0, consumption during the climb was 2 liters/min (corresponding to 96 kcal/min), find the efficiency 'of the hiker's body. (d) How'much energy appeared as heat in the body?

A 70 kg hiker climbed a mountain 1000 m high. He reached the peak in 3 hr. fa) Calculate the external work done by the climber. (b) Assuming the work was done at a steady rate during the 3 hr period, calculate the power generated during the climb. (c) Assuming the average 0, consumption during the climb was 2 liters/min (corresponding to 96 kcal/min), find the efficiency 'of the hiker's body. (d) How'much energy appeared as heat in the body?

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Description: 2 A 70 kg hiker climbed a mountain 1000 m high. He reached the peak in3 hr.fa) Calculate the external work done by the climber.(b) Assuming the work was done at a steady rate during the 3 hrperiod, calculate the power generated during the climb.(c)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Topic Video

Question

2 A 70 kg hiker climbed a mountain 1000 m high. He reached the peak in
3 hr.
fa) Calculate the external work done by the climber.
(b) Assuming the work was done at a steady rate during the 3 hr
period, calculate the power generated during the climb.
(c) Assuming the average O, consumption during the climb was 2
liters/min (corresponding to 9 6 kcal/min), find the efficiency'of
the hiker's body.
(d) How'much energy appeared as heat in the body?

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