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Homework Help: Total Energy Problem

  1. Jan 17, 2008 #1
    1. The problem statement, all variables and given/known data

    An object of mass 2.00 kg is held at a position A, a vertical height of 20.0 m above the ground. Point B is 8.00 m directly below A. Neglect air resistance and use g=10.0 m/s(squared)

    What is the ratio of the total energy of the object at position A to position B?
    2. Relevant equations

    g=10.0 m/s(squared)

    3. The attempt at a solution
    Last edited: Jan 17, 2008
  2. jcsd
  3. Jan 17, 2008 #2
    What is the difference in energy between the object at rest at position A and the object at rest at position B? (There's another equation you need, and you must have just seen it if you've been assigned this problem.)
  4. Jan 17, 2008 #3
    By the way - did you quote the problem exactly? I ask because it doesn't actually state how the object gets from A to B. If it's just dropped and is moving when it passes B, that's different than if you just lower it to B and let it come to rest there.
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