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Vector Question on a boat

  1. Sep 9, 2008 #1
    1. The problem statement, all variables and given/known data
    A boat leaves San Pedro and travels 35 km 15* west of south before its engine dies. You left San Pedro earlier in the morning and have traveled 42 km 23* south of west by the time the first boat's distress all reaches you. How far from and in what direction is the first boat relative to you at that point?

    2. Relevant equations
    for the other boat:

    for your boat:

    your boat components - other boat components = direction

    magnitude (your boat-other boat)= distance away

    3. The attempt at a solution

    Direction=[-30, 18, 0] (what directions is this . .)

  2. jcsd
  3. Sep 10, 2008 #2


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    Homework Helper

    The direction you have looks like its from the distressed boat to you. Your vector to the distressed boat looks to me like it should be tan-1(18/30) degrees south of East.
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