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Newtons 2nd law - incline plane w/ 2 angles

  1. Sep 19, 2008 #1
    1. The problem statement, all variables and given/known data


    3. The attempt at a solution

    this is what i got:

    Facos(theta1) - u(mgcos(theta2)+Fasin(theta1)) - mgsin(theta2) = 0

    26cos25 - .13(mgcos10+26sin25) - mgsin10 = 0

    mg= 73.376 N

    its wrong. what am i doing wrong?
  2. jcsd
  3. Sep 19, 2008 #2
    What direction have you chosen for your x axis?
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