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Homework Help: Time Derivative of potential energy

  1. Nov 11, 2008 #1
    1. The problem statement, all variables and given/known data

    Show that the time derivative of the potential energy can be written as dv/dt=-F1xV1x + (-F2xV2x)

    2. Relevant equations

    just proving it

    3. The attempt at a solution
    i haven't learned partial derivatives yet....so kind of confused.

    V=0.5mv^2...V'=mv...clearly not what this problem is asking for.
    I'll do some research online as well but can anyone lead me in the right direction? Is this do-able or quickly learnable? Thanks
     
  2. jcsd
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