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Homework Help: How to add 3 vectors of different directions together?

  1. Nov 15, 2011 #1
    For example: 3 Newtons [East30°North] + 5 Newtons [West] + 2 Newtons [West60°South]....

    Thanks!

    I missed the day we went over this in class so it is new to me!
     
  2. jcsd
  3. Nov 15, 2011 #2
    You need to break up each vector into horizontal and vertical components and then add those together separately.

    So for example if I have a vector that is 5N 75 degree North of East, I would know that
    [tex]F_{x} = 5N cos(75), F_{y} = 5N sin(75)[/tex]
     
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