Physics
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Boundless Physics
Linear Momentum and Collisions
Physics Textbooks Boundless Physics Linear Momentum and Collisions
Physics Textbooks Boundless Physics
Physics Textbooks
Physics

Section 5

Center of Mass

Book Version 3
By Boundless
Boundless Physics
Physics
by Boundless
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4 concepts
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Locating the Center of Mass

The position of COM is mass weighted average of the positions of particles. Mathematically, it is given as $\bf{r}_{COM} = \frac{\sum_i m_i \bf{r}_i}{M}$.

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Motion of the Center of Mass

We can describe the translational motion of a rigid body as if it is a point particle with the total mass located at the COM—center of mass.

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Center of Mass of the Human Body

The center of mass (COM) is an important physical concept—it is the point about which objects rotate.

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Center of Mass and Translational Motion

The COM (center of mass) of a system of particles is a geometric point that assumes all the mass and external force(s) during motion.

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