Problem 4.5 Consider the split Russel traction device and a mechanical model of the leg shown...

  

 

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Problem 4.5 Consider the split Russel traction device and a mechanical model of the leg shown in Fig. 4.53. The leg is held in the position shown by two weights that are connected to the leg via two cables. The combined weight of the leg and the cast is W 300 N. I is the horizontal distance between points A and B where the cables are attached to the leg. Point Cis the center of gravity of the leg including the cast which is located at a distance two-thirds of l as measured from point A. The angle cable 2 makes with the horizontal is measured as B = 45°. %3D Determine the tensions T1 and T2 in the cables, weights W1 and W2, and angle a that cable 1 makes with the horizontal, so that the leg remains in equilibrium at the position shown. Answers: T = Wı = 223.6 N, T2 = W2 = 282.8 N, a = 26.6° %3D 2. св C B/B W2 A W1 20/3 T2 T1 A C В W Fig. 4.53 Problem 4.5 Problem 4.5 Consider the split Russel traction device and a mechanical model of the leg shown in Fig. 4.53. The leg is held in the position shown by two weights that are connected to the leg via two cables. The combined weight of the leg and the cast is W 300 N. I is the horizontal distance between points A and B where the cables are attached to the leg. Point Cis the center of gravity of the leg including the cast which is located at a distance two-thirds of l as measured from point A. The angle cable 2 makes with the horizontal is measured as B = 45°. %3D Determine the tensions T1 and T2 in the cables, weights W1 and W2, and angle a that cable 1 makes with the horizontal, so that the leg remains in equilibrium at the position shown. Answers: T = Wı = 223.6 N, T2 = W2 = 282.8 N, a = 26.6° %3D 2. св C B/B W2 A W1 20/3 T2 T1 A C В W Fig. 4.53 Problem 4.5