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Rotational Dynamics Equilibrium - Torque With PICS!

  • Thread starter fobbz
  • Start date
  • #1
27
0

Homework Statement


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

Homework Equations


T= Fd


The Attempt at a Solution


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

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
 
Last edited by a moderator:

Answers and Replies

  • #2
52
0
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.
 

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