Rotational Dynamics Equilibrium - Torque With PICS

[fobbz]

Homework Statement

** disregard A)
[PLAIN]http://img153.imageshack.us/img153/917/img20111024001591.jpg

Homework Equations

T= Fd

The Attempt at a Solution

[PLAIN]http://img21.imageshack.us/img21/9645/img20111024001611.jpg

Basically I'm stuck now, and don't know what to do.. I don't know what to put for the force of gravity, is it a vector?
Please help

 

[SpecialKM]

Fg = mg

you have m of beam, 160kg

then, I think, you have to split mg up into orthogonal components, and see how much of it is going towards Fn.