BIO ENG C119 Study Guide - Free Body Diagram, Angular Acceleration, Ankle
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Answer all questions for a maximum of 100 points. Please write all answers in the space provided. If you need more space, there is an additional page at the end. Indicate your answer as clearly as possible for each question. Write your name at the top of each page as indicated. ____________________________________________________________________________________ (15 points total) dynamic planar (2d) analysis of the skeleton. Gravity is the most common force used to offer resistance in physical therapy. An exercise mass mex is placed on a patient"s foot for quadriceps strengthening (figure 1). This mass behaves as a concentrated mass acting at a distance l from the knee joint center o. The patient, sitting on a chair, is asked to extend their shank off the floor. At some instant, the shank is at an angle q to the vertical, as shown, and can be assumed to be rotating about the fixed knee center o with angular velocity w and angular acceleration a.
