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Homework Help: Calculating Power

  1. Mar 26, 2016 #1
    1. The problem statement, all variables and given/known data
    What is the power supplied by a 60.0 kg person running up a flight of stairs a vertical distance of 4.0 m in 4.2 s?
    m = 60kg
    d = 4m
    t = 4.2
    2. Relevant equations
    P = W / t
    W = Fdcos(Θ)
    F = ma
    3. The attempt at a solution
    Combining the equations above I did (m) (a) (d) / (t) which is (60 * 9.81 * 4) / (4.2) and got an end result of 560 W and I was wondering if this was correct.
  2. jcsd
  3. Mar 26, 2016 #2


    User Avatar

    Staff: Mentor

    Looks good.
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