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Equilibrium and find static friction

  1. Nov 10, 2015 #1
    1. The problem statement, all variables and given/known data
    image.jpg
    2. Relevant equations


    3. The attempt at a solution
    I had someone help me with this problem (not on here) and their process and units don't seem to match to me. Or is this correct?
     
  2. jcsd
  3. Nov 10, 2015 #2

    haruspex

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    That solution is clearly not right. It makes no use of the given dimensions, and these are easily seem to be relevant.
    As required by the forum rules, please now post your attempt at a solution. Start with listing the standard equations you know which are likely to be relevant.
     
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