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How does centre of mass of a system of p...

How does centre of mass of a system of particles move ?

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The centre of mass of a system of particles moves as if the entrire mass of the system is concentrated at the centre of mass and all the external forces are applied at the point.
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SUBHASH PUBLICATION-SYSTEMS OF PARTICLES AND ROTATIONAL MOTION-NUMERICAL WITH SOLUTIONS
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  4. If the Earth were to suddenly contact to half its present radius, by h...

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  12. An oxygen molecule has a mass of 5.30xx10^(-26) kg and a moment of ine...

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