A large number of particles are placed around the origin, \( \mathr...

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A large number of particles are placed around the origin,
\( \mathrm{P} \) each at a distance \( R \) from the origin. The distance of the
\( \mathrm{W} \) centre of mass of the system from the origin is
[WB JEE 2015]
(a) \( =R \)
(b) \( \geq R \)
(c) \( R \)
(d) \( \leq R \)
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