A setup similar to the one shown in the figure above is often used in hospitals
ID: 2220634 • Letter: A
Question
A setup similar to the one shown in the figure above is often used in hospitals to support and apply a traction force to an injured leg. (a) Determine the force of tension in the rope supporting the leg. N (b) What is the traction force exerted on the leg? Assume the traction force is horizontal. N
A setup similar to the one shown in the figure above is often used in hospitals to support and apply a traction force to an injured leg. (a) Determine the force of tension in the rope supporting the leg. N (b) What is the traction force exerted on the leg? Assume the traction force is horizontal. NExplanation / Answer
T=8SIN70=7.5N F=MGcos 70=8*9.8*.34=26.8N The leg bones support the weight of your upper body. When a person breaks a leg bone, the lower part of the leg bone is no longer attached to the upper part of the leg bone. The leg muscles will contract, causing the lower part of the leg bone to move toward the upper part of the leg bone and over lap upper part of the leg bone. The rope is attached to the ankle/foot of the patient. The tension in the rope pulls on the lower part of the leg to prevent the movement of the lower part of the leg bone. The tension is the traction force. In the past, people did not have this traction pulley system. When their leg bone healed, the broken leg was shorter than the other leg.
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