Help Solve Human Energy Problem - 50 kg Hiker Climbs 1000m Mountain

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SUMMARY

The discussion focuses on calculating the energy expenditure of a 50 kg hiker who climbs a 1000m mountain over 3 hours. The average oxygen consumption is noted as 2x10^-3 m^3/min, leading to an energy expenditure of 4x10^4 J/min. The total energy expenditure is calculated by multiplying the rate by the climb time, and the potential energy used to overcome the height is determined. The remaining energy is identified as heat produced in the body during the climb.

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jmandas
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human energy problem!

okay...i have this assignment that's due tomorrow morning so I'm begging for some help. There is only one problem that I'm totally lost on.

A 50 kg hiker climbs a mountain 1000m high in 3 hrs. Assuming the average O2 consumption during his climb was 2x10^-3 m^3/min(2 liters/min) corresponding to an energy expenditure of 4x10^4J/min, how much energy appears as heat in the body?

:cry:
Any help would be great...Thanks so much! :smile:
 
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Calculate the total energy expenditure (Rate * climb time)

How much of this is used to overcome the potantial energy?

How much is left? What ever left should appear as heat in the body.
 
thanks so much that worked
 

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