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Find the curvature

  1. Feb 27, 2015 #1
    1. The problem statement, all variables and given/known data
    Find the curvature of r(t)=t*i+(1/2)t^2*j+t^2*k.

    2. Relevant equations

    3. The attempt at a solution
    r'(t)=<1, t, 2t>
    r"(t)=<0, 1, 2>
    r'(t)xr''(t)=<0, t, 4t>
  2. jcsd
  3. Feb 27, 2015 #2


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    Science Advisor
    Homework Helper

    You should really state what your question is, but the cross product is wrong.
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