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What can be said for the centre of mass ...

What can be said for the centre of mass of system `M(vecdv_(cm))/(dt)=vecMa_(cm)=vecF`?

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It can be said that from `M(vecdv_(cm))/(dt)=vecMa_(cm)=vecF`,
The centre of mass of system on which whole mass of system is concentrated and it move under the external force.
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