A small man is sitting in a bosun chair that dangles from a massless rope, which runs over a massless frictionless pulley and back down to the mans hand. The combined mass of the man and the chair is 95kg. with what force magnitude must the man pull on the rope if he is to rise? Heres a link to a drawing http://img438.imageshack.us/img438/8349/pulley27xt.png I'm having troubles drawing the FBD for the man on the chair. The following is my attempted drawing of FBD of the man. W down Fn up, by the chair, equivalent in magnitude of W. F down, man pulling the rope Fn up, equal and opposite reaction by the chair and T up Someone help me out here pls?