The longest bone in the human body is the femur. It is the only bone located in the upper leg. Fractures, or breaking of the femur bone, often involve high-speed accidents, such as from skiing or in an automobile collision. An alternative way to apply skeletal traction to the injured leg, as compared to Example 12, is shown in the figure. (a) What is the tension in the rope, and (b) what is the traction force (FT) that acts on the leg? 60 3.0 kg