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Curvature Proofs.

  1. Feb 16, 2013 #1
    1. The problem statement, all variables and given/known data
    I have to prove two of the curvature formulas. The first one is (V X A) / l V3l

    The other one is a(t) * N(t) / l V(t) I2


    2. Relevant equations

    I have a hint from my professor, but it is all confusing. I need a youtube video or something to get started on these.

    3. The attempt at a solution

    I used the a(t) = at *T + an*N to get the first part, but now I am stuck on the making it into the form of V X A. The I have no idea how I would get it over the cube of the speed.
     
  2. jcsd
  3. Feb 23, 2013 #2
    These don't seem to be equations. There are no equals signs. Can you edit and tell us what you mean?
     
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