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Electric Forces Problem need help

  1. Mar 30, 2005 #1
    Electric Forces Problem need help!!

    ok i need to kno how to add all the forces acting on charged particles. these particles are in a square
    + . - .

    -. - .
    for instance i solved for all the forces acting on the + particle but i don't know how to add the three since it adds one pulling in each direction...i learned to add only two forces like an x ,y axis but not three plz help!!
  2. jcsd
  3. Mar 30, 2005 #2
    Add two, and then add the third one to that.
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