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Homework Help: Why cosine theta for calculations?

  1. Dec 5, 2005 #1
    When figuring the force between 2 points, no angle the result is calculated just by distance (and charge). But when there are 3 points, either 2 charges or more and a point or 3 charges, why is there an angle calculation?
     
    Last edited: Dec 5, 2005
  2. jcsd
  3. Dec 5, 2005 #2

    Tide

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    I think a good start would be to state the problem clearly. Your description of it is a bit vague.
     
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