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Homework Help: Finding a speed

  1. Jan 22, 2007 #1
    Hi friends,
    Plz. point me how to find the following:

    A man on the ground sees a bird flying at angle of 60 degrees with horizontal.He started running at 120m/hour,is able to stay directly below the bird.What's bird speed?

    Thanks in advance.
  2. jcsd
  3. Jan 22, 2007 #2


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    IF the man is running at 120 metres/hr stays directly below the bird, what does that say about the horizontal component of the birds velocity? Given this and the angle, can you find it's actual velocity?

    edit: sorry, I shouldn't really have helped withour seeing your efforts first-PF rules.. I don't know what came over me!! In future please use the homework posting template with which you were provided.
    Last edited: Jan 22, 2007
  4. Jan 22, 2007 #3


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    Have you drawn a diagram?

    Show us any effort you have made?
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