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Need help finding magnitude of A - B + C given 3 vectors!

  1. Sep 22, 2015 #1
    You are given three vectors.
    A = 46.0 at θ1 = 56.6° above the +x axis
    B = 25.0 at θ2 = 34.4° above the −x axis
    C = 32.0 along the −y axis.


    Determine A - B + C (magnitude and angle from the positive x axis).
    Determine the angle relative to the positive x-axis, positive above and negative below


    I have attempted the solution many times and ended up with 44.6 and -9.96 deg. but it is incorrect
    Screen Shot 2015-09-22 at 10.41.39 PM.png

    Any help would be appreciated!

    Regards,
     
  2. jcsd
  3. Sep 22, 2015 #2
    Looks like you've made a simple sign error. You have the correct sign for the vector B's components, but then you added the values for the resultant's x component rather than subtracting.
     
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