Hi! I'm really having a problem understanding this part of statics so please help! In this picture, http://i312.photobucket.com/albums/ll323/IAmMaxwellEdison/Members.jpg, what are the zero force members and how do I identify them? I'm pretty sure that GH, CF, and CD are zero-force members. However, I'm uncertain if EH is a zero force member because load is being applied on point E. Also, are AB and AD zero-force members? because there is the reaction force from the pins so I'm not very sure. So basically, I think all of the members inside the truss are zero-force members if I were to follow this guide. http://vcity.ou.edu/demoModules/analysis/truss/media/zeromem.gif I'm sorry for asking so many questions, but I'm pretty sure I will be able to understand the concept much easier if these questions were answered. Thanks!