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Homework Help: Question i dont understand

  1. Sep 25, 2007 #1
    1. The problem statement, all variables and given/known data

    Show that the tangential component of a moving particle is given by the expression a(tau)=v.a/v (upper a and v vectors) and the normal component is therefore
    an = [a^2-(v.a)^2/v^2]^1/2. I have no idea how to solve this. Its from a book, not homework as such, just wanna know how to solve it.

    2. The attempt at a solution
     
  2. jcsd
  3. Sep 25, 2007 #2

    Astronuc

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