1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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


    User Avatar
    Staff Emeritus
    Science Advisor

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook