How Do You Solve 2D Equilibrium of a Rigid Body?

AI Thread Summary
To solve the 2D equilibrium of a rigid body, start by identifying all forces acting on the body and applying the equilibrium equations: ƩFx=0, ƩFy=0, and ƩMo=0. If uncertain about specific forces, treat unknowns generically as horizontal and vertical reaction forces. The discussion highlights confusion around the role of point B, with clarification that it does not necessarily involve a moment. Ultimately, understanding the forces and their components is crucial for solving the problem effectively.
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Homework Statement



http://i.imgur.com/0h6dF.png

Homework Equations



ƩFx=0
ƩFy=0
ƩMo=0

The Attempt at a Solution


not sure what unknowns are
 
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Start by enumerating the forces.
 
voko said:
Start by enumerating the forces.

http://i.imgur.com/zoSAh.png

my main problem is that i don't know what to do with B
 
If you do not know, treat it generically. Assume it is a sum a horizontal and a vertical reaction forces. Then solve for them independently.
 
ok I think I got it now. I was just confused and assumed there would be a moment at B. Thanks
 

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