Calculating Power Output Climbing Stairs

AI Thread Summary
To calculate power output while climbing stairs, first determine the work done, which is based on the change in gravitational potential energy. The mass of the individual is 76.0 kg, and they climb 40 stairs, each 18 cm high, resulting in a total height of 7.2 meters. The work done can be calculated using the formula for gravitational potential energy, which is mass times gravity times height. The power output is then found by dividing the work by the time taken, which is 19.0 seconds. This approach clarifies the relationship between energy change and time in calculating power output.
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Homework Statement



Suppose your mass is 76.0 kg and you climb 40 stairs of height 18 cm in 19.0 s. What is your power output as you climb the stairs?

Homework Equations



Power = Work / change of time

The Attempt at a Solution



I need a hint on solving for the work. I tried solving for the kinetic energy, but my answer was wrong.
 
Physics news on Phys.org
Power is energy / time.
What is the change in energy between the top and bottom?
How long did it take to generate that energy.
 

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