Rigid Body Kinematics


A rigid body is a collection of particles for which the distance between any two particles does not change. Because of this constant distance constraint, there are a limited number of ways in which these collections of particles can move. On this page, we discuss how rigid bodies constrain the particles they are comprised of.

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Relative Motion

Before we dive into the kinematics of rigid bodies, it is instructive to discuss relative motion of particles. In this video we we discuss a fundamental framework that we will use to study rigid bodies.