In desperate need of help with this statically indeterminable problem

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SUMMARY

The discussion revolves around a statically indeterminable problem involving the analysis of forces in the human leg, specifically at point C when the leg is positioned with point B as a pin connection at the ankle. The user is tasked with determining the force (F) exerted at point C, with known masses and distances. Key equations of static equilibrium are referenced, and the user seeks guidance on how to proceed without requiring a numerical solution. The confusion regarding the identification of body segments AB and BC is clarified, with AB representing the shin and BC mistakenly referred to as the thigh.

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Homework Statement



http://img855.imageshack.us/img855/5648/fbds.png

Basically I am analysing the human leg in the given position. I need to find the force (F) which is exerted at point C, when the person is in such a position. Point B represents a "pin connection" at the ankle, body AB is the shin, BC - the thigh. All masses and distances are known.

Homework Equations



These are the main equations of static equilibrium for the two bodies.

http://img600.imageshack.us/img600/6118/equilibriums.png

Unknowns: Bx,By,N,Ax,Mb,Mc,F.

The Attempt at a Solution



That was my attempt, I am not looking for a numerical solution, just some help with how should I continue... If this truly is a statically indeterminable problem, I don't think that the method of superposition or other deviation related methods could help... Any input would be greatly appreciated. Even if it includes pointing out a stupid mistake of mine.. :D Thanks, guys!
 
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"Point B represents a "pin connection" at the ankle, body AB is the shin, BC - the thigh."

If B is the ankle and AB the shin, how can BC be the thigh?
 
Omg, stupid mistake, sorry. A is the pin joint.
 

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