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Vectors question check please.

  1. Sep 15, 2012 #1
    1. The problem statement, all variables and given/known data
    1. The problem statement, all variables and given/known data
    A man walks 5 m at 37degrees north of east and then 10 m at 60degrees
    west of north. What is the magnitude and direction of his net
    displacement

    The answer is around 9.3m at around 120 degrees angle on the +x axis


    2. Relevant equations



    3. The attempt at a solution

    Well my question is I try to solve this component using the component way This is my work

    http://imageshack.us/photo/my-images/802/vectorsproblem2question.png/


    My question is that for vector B the ax is sin60(10)=8.66

    so when I do my i j notation can I put -8.66 since it's pointing towards west which is going towards the negative x coordinate?


    Thank you guys for the help.
     
  2. jcsd
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