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Average Power

  1. Apr 18, 2010 #1
    reginald esuke from cameroon ran down a mountain slope from an elevation of 4095m to one of 915m in just 62.25min. if esukes mass was 70.0kg, what was the average power during his descent?
     
  2. jcsd
  3. Apr 18, 2010 #2

    radou

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    Any thoughts, ideas? How is power related to work?
     
  4. Apr 18, 2010 #3
    P=W/change in time
    but how do i find the work?
     
  5. Apr 18, 2010 #4

    radou

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    What is the definition of work?
     
  6. Apr 18, 2010 #5
    work is a force acting over a distance. is the force gravity?
     
  7. Apr 18, 2010 #6

    radou

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    Yes. The work done equals the change in gravitational potential energy (i.e. the difference).
     
  8. Apr 18, 2010 #7
    alright thanks
     
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