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Conservative forces and potential energy

  1. Nov 12, 2008 #1
    1. The problem statement, all variables and given/known data
    Show that F=-mgk is a conservative force with potential energy V=mgz

    3. The attempt at a solution
    I dont really know where to ven start with this one. I know it may be something to do with Newton's 2nd law F=ma, but i really dont know what to do
  2. jcsd
  3. Nov 12, 2008 #2
    What's the definiton of a conversative force and a potential? What is their relation?
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