I\'m trying to solve a problem on \"How many slices of bread did each climber ha

Question

I'm trying to solve a problem on "How many slices of bread did each climber have to eat to compensate for the gravitational potential energy of the system climbers-earth?"

The two climbers are on Mt. Everest and I'm looking for the amount of bread they had to eat for energy.
The weight is 85kg, assume height of mt. everest is 8850m, energy in bread is 1 x 10^6 J. The efficiencialy in converting chemical energy into mechanical work is 11%.

So here's what I have.

1 x 10^6 * 0.11 = 110,00 J.

Ug = mgh = 85kg*9.81Nkg*8850m = 7379572.5

mgh/(110,000) = 67.087 pieces of bread. It's not correct however. Do I need to divide it by 2 for each climber?

Explanation / Answer

this is correct answer

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects