Solving Problem With Forces: Calculating Force at Point C

[LonelyStar]

Hi everbody,
I have trouble solving the following problem. I need a sollution in 2D, the 3D case does not matter.

I have a freely movable Body with mass M and Moment Of Inertia I.
The center of gravity of the body is at point A. Some Force F as pulling on the body at point B.
If the body would be sticked together with some other body at point C by a nail so that both bodies can freely rotate, what force would pull on the other body on point C?

I am sorry for my body english, it's not my native language. I hope I was able to describe the problem/question.

Thanks!
Nathan

 

[Greg Bernhardt]

Hi Nathan,

I think I understand your question. If the two bodies are connected at point C, then the force F that is pulling on the first body at point B will be transferred to the second body at point C, causing it to rotate. The magnitude of the force applied to the second body will be equal to the magnitude of F, but the direction may be different depending on the orientation of the two bodies.