A therapist tells a 80.0 {kg} patient with a broken leg thathe must have his leg in a cast suspended horizontally. For minimumdiscomfort, the leg should be supported by a vertical strapattached at the center of mass of the leg-cast system. (See thefigure below .) In order to comply with these instructions, thepatient consults a table of typical mass distributions and findsthat both upper legs (thighs) together typically account for 21.5 %of body weight and the center of mass of each thigh is 18.0 {cm}from the hip joint. The patient also reads that the two lower legs(including the feet) are 14.0 % of body weight, with a center ofmass 69.0 { m cm} from the hip joint. The cast has a mass of 5.50{kg}, and its center of mass is 78.0 { m cm} from the hipjoint
1.How far from the hip joint should the supporting strap beattached to the cast? (in cm)
A therapist tells a 80.0 {kg} patient with a broken leg that he must have his leg in a cast suspended horizontally. For minimum discomfort, the leg should be supported by a vertical strap attached at the center of mass of the leg-cast system. (See the figure below .) In order to comply with these instructions, the patient consults a table of typical mass distributions and finds that both upper legs (thighs) together typically account for 21.5 % of body weight and the center of mass of each thigh is 18.0 {cm} from the hip joint. The patient also reads that the two lower legs (including the feet) are 14.0 % of body weight, with a center of mass 69.0 {rm cm} from the hip joint. The cast has a mass of 5.50 {kg}, and its center of mass is 78.0 {rm cm} from the hip joint 1.How far from the hip joint should the supporting strap be attached to the cast? (in cm)
