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Mirror physics help

  1. Jul 31, 2009 #1
    1. The problem statement, all variables and given/known data
    If you are walking towards a mirror at 7 m/s, how fast are you and your image approaching each other? Answer in m/s.

    2. Relevant equations

    3. The attempt at a solution
    I'm not sure how to solve this mathmatically but when I first looked at this question, I just automatically thought that the answer should be 7 m/s. Why or why not is that correct?
  2. jcsd
  3. Jul 31, 2009 #2
    Re: Mirrors

    Say you're 100m away from the mirror, in the image, how far away from the mirror (THROUGH) the mirror will your image be? use the mirror as a central point and then draw where you and your image are.
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