Sat February 19, 2011 By: Arun Iyer

Obtain the relation for position vector of centre of mass of system of particles.

Expert Reply
Sat February 19, 2011
Dear student
Centre of mass of a two particle system,

Where m = m1 + m2, that is the mass of a hypothetical object. Its position at any time is given by position vector such that,

This is nothing but the position vectorand is called the centre of the mass of the two-particle system.

It is the point where the total external force is supposed to act.

Hope this clarifies your doubt.
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