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Homework Help: Power Output Problem

  1. Oct 11, 2007 #1
    1. The problem statement, all variables and given/known data

    In the rope climb, a 68.4kg athlete climbs a vertical distance of 4.76m in 8.38s. What minimum power output was used to accomplish this feat?


    2. Relevant equations
    P_av=delta W/delta t
    P=dW/dt
    P=F*v


    3. The attempt at a solution
    Can someone help me get started on this problem, I don't know where to begin?
     
  2. jcsd
  3. Oct 11, 2007 #2

    learningphysics

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    Find the change in energy... use gravitational potential energy... then divide by time to get power.
     
  4. Oct 11, 2007 #3
    How do you figure out gravitational potential energy?
     
  5. Oct 11, 2007 #4

    learningphysics

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    gravitational potential energy = mgh
     
  6. Oct 11, 2007 #5
    Oh ok, thanks man!
     
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