problem 10.83 downward-facing dog.

Project Description:

one yoga exercise, known as the "downward-facing dog," requires stretching your hands straight out above your head and bending down to lean against the floor. this exercise is performed by a certain 745 person, as shown in the simplified model in the figure below (figure ) . when he bends his body at the hip to a 90.0 angle between his legs and trunk, his legs, trunk, head and arms have the dimensions indicated. furthermore, his legs and feet weigh a total of 270 , and their center of mass is 41.0 from his hip, measured along his legs. the person's trunk, head, and arms weigh 475 , and their center of gravity is 65.0 from his hip, measured along the upper body
find the friction force on each hand, assuming that it is the same on both feet and on both hands (but not necessarily the same on the feet as on the hands). hint: first treat his entire body as a system; then isolate his legs (or his upper body).
find the friction on each foot, assuming that it is the same on both feet and on both hands (but not necessarily the same on the feet as on the hands). hint: first treat his entire body as a system; then isolate his legs (or his upper body).
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