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Unit vector?

  1. Mar 1, 2010 #1
    1. The problem statement, all variables and given/known data
    Im given two vectors and im told to find theyre unit normal vector.

    2. Relevant equations

    a x b

    3. The attempt at a solution
    I used the cross product of the 2 vectors to find the normal vector, however, it came out to be i + j + k. My question is, is this already a unit vector or do i need to use the equation [tex]\hat{}n[/tex] = n/[tex]\left|n\right|[/tex]?
  2. jcsd
  3. Mar 1, 2010 #2
    i+j+k is not a unit vector unit vector has magnitude 1 unit vector in the direction of i+j+k is (i+j+k)/3^.5
  4. Mar 1, 2010 #3
    Understood, thank youuuuuu.
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