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Relative Motion

  1. Oct 5, 2009 #1
    1. How long will it take a plane to travel 100km [N] if its ground velocity is 796km/h [25 W of N]

    I am having the hardest time with question since I actually don't know how to start. I know it require the fomula T= V*D. I manage to get a diagram but that is far as I gone. =(

    mjmjbc.jpg

    Help? I have a final tomorrow and I need to able to do this kind of questions.
     
  2. jcsd
  3. Oct 5, 2009 #2

    Delphi51

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    Homework Helper

    It is an odd question. Are you sure you weren't given any information about the wind speed and direction?

    As it stands, I would say you are just asked to find the vertical or north component of the vector. That is 795*cos(25). And use that speed in d = vt where d is 100 km to find the time.
     
  4. Oct 6, 2009 #3
    I quoted it word for word, that is all your given =(
     
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