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Vector Problems

  1. Feb 4, 2010 #1
    Hi i need help with some online homework but i cant seem to get the right answer.
    Vector A has a magnitude of 70 units and points due west, while vector B has the same magnitude and points due south. Find the magnitude and direction of (a) A + B and (b) A - B . Specify the directions relative to due west.

    for part a) i got mag = 99 with angle of 45 degreees south of west and b) same thing but north of west am i doing something wrong?
    Last edited: Feb 4, 2010
  2. jcsd
  3. Feb 5, 2010 #2


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    Homework Helper

    Are you getting both a) and b) wrong, or just b)? You are likely not specifying the angle properly from the due west direction.
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