Kinesiology 2241A/B Lecture Notes - Lecture 10: Motion Sickness, Proprioception, Virtual Reality
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26 Oct 2017
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In physics equilibrium means all forces and torques add to zero: all it means. Static equilibrium: means there is no acceleration like in this isometric position, all forces add to zero, all torques add to zero, and the center of mass is not accelerating. Note: the book is wrong in its definition in section 3. 1. I(cid:374)ertial for(cid:272)e is (cid:449)hat"s pushi(cid:374)g (cid:455)ou arou(cid:374)d: being accelerated to center of circle inertial force pushes you opposite of acceleration. Inertial forces act to oppose any accelerations of the center of mass. These are the forces that you feel when you are performing a task with acceleration. Like in this runner who is turning to his left, he feels the inertial force downward and to his right: the opposite of the acceleration of his center of mass. You feel center of mass going down and out of the curve. He is in dynamic equilibrium and is accelerating.