Part A The Russell Traction System To immobilize a fractured femur (the thigh bone), doctors often utilize the Russell traction system illustrated in the Find the angle 0 required to produce this alignment of Ftotal . (Assume the pulleys are ideal.) figure. Notice that one force is applied directly to the knee, F1 . while two other forces, F2 and F's are applied to the foot. The latter two forces IVO AEQ combine to give a force Fa + F's that is transmitted through the lower leg to the knee. The result is that the knee experiences the total force 0 = degrees Ftotal = Fi + Fa+F's. The goal of this traction system is to have Ftotal directly in line with the fractured femur, at an angle of 20.0 above the Submit Previous Answers Request Answer horizontal (Figure_1) X Incorrect; Try Again; 3 attempts remaining Part B Find the magnitude of the force, Ftotal that is applied to the femur in this case. AEd Ftotal N