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Homework Help: Determine magnitude of change in velocity and direction

  1. Jul 25, 2015 #1
    1. The problem statement, all variables and given/known data
    A sailing boat moves at 12ms-1 due North then changing direction to north-west and travelling at a speed of 5.5ms-1 . Determine the magnitude of change in velocity n its direction.

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Jul 25, 2015 #2
    is this a trick question?

    magnitude of velocity is just speed, so has nothing to do with direction.
  4. Jul 25, 2015 #3


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    Science Advisor

    No. It is not a trick question. Direction has something to do with it. However, the OP has not shown any work, so we should resist the urge to provide advice until he or she has shown some effort and thereby given us a starting point.
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