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Homework Help: Swinging Monkey

  1. Jan 27, 2010 #1
    Swinging Monkey!!!

    1. The problem statement, all variables and given/known data
    A 9.0 kg monkey swings from one branch to another 1.3 m higher. What is the change in potential energy?

    2. Relevant equations

    Ke = (1/2)mv^2
    GPE = mgh
    EPE = (1.2)Kx^2


    3. The attempt at a solution
     
  2. jcsd
  3. Jan 27, 2010 #2

    tiny-tim

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    Hi tigerwoods99! :smile:

    (try using the X2 tag just above the Reply box :wink:)
    ok … which of those equations is it? :smile:
     
  4. Jan 27, 2010 #3
    Re: Swinging Monkey!!!

    Take a guess. Here's a hint: you only need one formula, and it involves the thing you're trying to find.
     
  5. Jan 27, 2010 #4
    Re: Swinging Monkey!!!

    I am gonna take a guess and say its the Gravitational Potential because if the object is higher the potential is greater.

    So would it be final - initial potential

    (8*9.8)(1.3) - (8*9.8)(0) = 101.92?
     
  6. Jan 27, 2010 #5
    Re: Swinging Monkey!!!

    I'm not gonna check your calculator work but you used 8m not 9m not sure which want the problem actually says :smile:. Other than that looks good.
     
  7. Jan 27, 2010 #6
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