In my statics class we are studying Rigid body equilibrium and when it got to 3D I get a little lost. Below are some homework questions I'm having a hard time starting. I get the free body diagrams but don't know where to go from there. I find that there are more unknowns than I have equations for. I have provided links for the reactions that happen at certain types of connections. I also apologize for the bad scanning job on a couple of the images. Reactions: http://herograw.com/reactions1.JPG [Broken] http://herograw.com/reactions2.JPG [Broken] Questions: http://herograw.com/5-80.JPG [Broken] http://herograw.com/5-84.JPG [Broken] http://herograw.com/5-96.JPG [Broken] I appreciate any help. I need to finish this assignment asap.