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Homework Help: Application of vector - answer checking

  1. Nov 14, 2011 #1
    1. The problem statement, all variables and given/known data

    Two ships, A and B are sailing along straight routes with constant velocities. At 10 o clock morning, ship B is 8 nautical miles from A and its bearing from A is 315°. At 10.15 in the morning, ship B is 6 nautical miles from A and its bearing from A is 320°. Find the direction of velocity B relative to A.

    2. Relevant equations



    3. The attempt at a solution

    My answer: W30.5°N, but answer given if E30.5°S, what answer do you guys get? :smile:
     
  2. jcsd
  3. Nov 14, 2011 #2

    HallsofIvy

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    Science Advisor

    The given answer, E30.5S is correct. How did you get "W... S"?
     
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