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Homework Help: A physic question

  1. May 9, 2007 #1
    1. The problem statement, all variables and given/known data
    The information was posted as an image

    http://img300.imageshack.us/img300/5259/question01em4.jpg [Broken]

    2. Relevant equations

    3. The attempt at a solution

    This question is confused, I very much appreciate if some one can help. It is NOT a homework question, it was a problem in previous exam. I'd like to have full explanation how to obtain the answer
    Last edited by a moderator: May 2, 2017
  2. jcsd
  3. May 9, 2007 #2


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    Staff Emeritus
    Science Advisor

    You still need to show some work. what do you know about the topic, what have you tried? I doubt anyone will give you a full solution without you makinig an effort!
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