Rigid Body Dynamics
In the foregoing we have studied the motion of particles. Strictly speaking, the term point mass should have been used instead of particle, in order to emphasize the theoretical nature of the concept. A point mass represents a finite mass of infinitesimal volume. Reality comes close to it in many cases. Even a huge body such as the earth, can be looked upon as a point mass, for example when its fundamental motion about the sun is investigated.
KeywordsPoint Mass Euler Angle Inertia Tensor Principal Moment Angular Velocity Vector
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