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Vector problem(A+B=C) A and C given

  1. Sep 19, 2010 #1
    1. The problem statement, all variables and given/known data
    In the sum A+B = C, vector A has a magnitude of 10.6 m and is angled 41.3° counterclockwise from the +x direction, and vector C has a magnitude of 16.5 m and is angled 13.1° counterclockwise from the -x direction. What are (a) the magnitude and (b) the angle (relative to +x) of B ? State your angle as a positive number.


    2. Relevant equations



    3. The attempt at a solution
    I found the components of vector A and C which came out to be

    Ay=10.6*sin(41.3)=6.99601768
    Ax10.6*cos(41.3)=7.963399815

    Cy=16.5*sin(13.1)=3.739746573
    Cx=16.5*cos(13.1)=16.0760346

    so i'm not sure what i do after that. Do i add the components or subtract them to get By and Bx and then get the square root of both y and x squared? Thank you for any help given!~
     
  2. jcsd
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