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Homework Help: Moving wedge with a particle.

  1. Oct 8, 2011 #1
    1. The problem statement, all variables and given/known data
    See Q2, Method 1 part c.


    2. Relevant equations



    3. The attempt at a solution
    http://a5.sphotos.ak.fbcdn.net/hphotos-ak-ash4/316587_2275178233577_1072324659_2439905_368313036_n.jpg" [Broken]
    I have obtain all eqtn I need but I cannot figure out how to get the equation of c.
    I have been trying for few days and my friends tell me that it is possible that Dr made a mistake. Since without part c, we can still do part d easily.

    Can anyone help me to see weather there are any error in the question?
     

    Attached Files:

    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Oct 8, 2011 #2

    Doc Al

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    Staff: Mentor

    Your attachment doesn't seem to have Q2 in it.
     
  4. Oct 8, 2011 #3
    I have fixed the problem now
     
  5. Oct 8, 2011 #4

    Doc Al

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    Staff: Mentor

    My only comment is that your equation for the wedge neglects the tension in the string.
     
  6. Oct 8, 2011 #5
    Thx very much!
     
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