KNES 300 Lecture Notes - Lecture 14: Anatomical Terms Of Location, Biceps, Human Musculoskeletal System
15 Mar 2017
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What is eight ball"s velocity, before collision, horizontal: mcvccosc + m8v8cos8, vertical: mcvcsinc + m8v8sin8. Introduction to moments: moments (of force) are the fundamental quantity of angular kinetics, angular force, cause rotational motion, also called torques. In biomechanics, moment and toque are used interchangeably. If the line of action passes through axis of rotation: d = 0, no moment. Moments example: muscle torque: fm = 300 n; d = 0. 05 m; m = , m = d x f, direction: ccw (why?, magnitude: m = (0. 05 m)(300 n) = 15. 0 nm ccw. Levers: class of lever is based on arrangement of the joint, resistance force and effort force, first class, f and r is on opposite sides and acting in the same direction. Joint in the middle: fairly rare in body, second class, both f and r is on the same side of joint, f is point up and r is pointing down, fairly rare in body.
