BIO ENG C119 Study Guide - Sagittal Plane, Hip, Femur Neck
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Answer all questions for a maximum of 100 points. Please write all answers in the space provided. If you need additional space, write on the back sides. Indicate your answer as clearly as possible for each question. Write your name at the top of each page as indicated. ____________________________________________________________________________________ (30 points total) dynamic planar (2d) analysis of the skeleton. During a giant circle routine (figure 1), a gymnast rotates in the sagittal plane around a fixed bar which they grip in an approximately frictionless manner. The links are connected at the hip joint. The masses and mass moments of inertia (about the mass center) are mt, It for the torso, and ml, il for the legs. Assume for this problem that the only known kinematic data are the angular position, velocity, and accelerations of the torso, denoted qt, wt and at, respectively. The resultant (vector) force exerted by the bar on the gymnast"s hands, g, is also known.
