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Homework Help: Summation of torques

  1. Jul 7, 2010 #1
    1. The problem statement, all variables and given/known data
    Write the necessary equation of the object shown in Figure P8.4. Take the origin of the torque equation about an axis perpendicular to the page through the point O. (Let counterclockwise torque be positive and let forces to the right and up be positive. Use q for θ and Rx, Ry, Fx, Fy, Fg, l, and g as appropriate in your equations.)

    p8-4.gif

    ΣFx=
    ΣFy=
    Στ=

    3. The attempt at a solution
    ΣFx = -Rx+Fx=0
    ΣFy= Fy+Ry-Fg=0
    Στ=

    I can't figure out the summation of the torques
     
  2. jcsd
  3. Jul 7, 2010 #2

    rock.freak667

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    Homework Helper

    For Fg,Fy and Fx, what are the perpendicular distances from O ? (Take the distance 'l' as the hypotenuse of a right angle triangle)
     
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