Suppose we have the following truss-like structure, with a load of 1N on the middle joint and two reactions on the bottom joints.
If I try to analyze this using a Cremona diagram, I run into the problem that I do not know how to handle a load on a joint inside the structure. Is it possible to analyze this with a Cremoda diagram, and if so, how does the naming of the different faces and panels work? Because we can only depict forces on joints between faces, right?
Is there even a solution?