Homework Help: Summation of torques

1. Jul 7, 2010

mandy9008

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.)

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. Jul 7, 2010

rock.freak667

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