1. The problem statement, all variables and given/known data Can anyone explain to me how is the left-sided drawing related to the right sided drawing? I asked the teacher but he confused me so I let it go. http://img443.imageshack.us/img443/3036/drawinge.jpg [Broken] The description is this: This crane in the drawing is designed to lift load at max weight of 650kg through the described hook construct. The screw in the drawing is fastened by a force that prevents any relative sliding possibiltiy betwee the two surfaces. The questions just want me to pick a right screw and right I profile for the beam, but I'm not trying to solve it. I'm trying to figure out how do the two drawings relate.