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The device shown in the figure below (Figure 1) is one version of a Russell traction apparatus. It has two functions: to support the injured leg horizontally and at the same time provide a horizontal traction force on it. This can be done by adjusting the weight W and the angle 0. For this patient, his leg (including his foot) is 77.0 cm long (measured from the hip joint) and has a mass of 12.8 kg. Its center of mass is 40.0 cm from the hip joint. A support strap is attached to the patient's ankle 13.0 cm from the bottom of his foot. Figure Hip joint. 13.0 cm > 1 of 1 W Part A What weight W is needed to support the leg horizontally? Express your answer in newtons. IVE ΑΣΦ W = Submit Part B 0 = Request Answer Submit If the therapist specifies that the traction force must be 11.0 N horizontally, what must be the angle ? Express your answer in degrees. VE ΑΣΦ Request Answer ? P Pearson ? N O
The device shown in the figure below (Figure 1) is one version of a Russell traction apparatus. It has two functions: to support the injured leg horizontally and at the same time provide a horizontal traction force on it. This can be done by adjusting the weight W and the angle 9. For this patient, his leg (including his foot) is 77.0 cm long (measured from the hip joint) and has a mass of 12.8 kg. Its center of mass is 40.0 cm from the hip joint. A support strap is attached to the patient's ankle 13.0 cm from the bottom of his foot. Figure Hip joint 13.0 cm 1 of 1 W Part C What is the greatest traction force that this apparatus could supply to this patient's leg? Express your answer in newtons. IVE ΑΣΦ Fmax = Submit Part D What is in that case? Express your answer in degrees. 0 = Request Answer Submit VE ΑΣΦ Request Answer P Pearson ? ? N