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Three identical spheres, each of mass \(1 \mathrm{~kg}\) are kept as shown in figure, touching e....
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Three identical spheres, each of mass \(1 \mathrm{~kg}\) are kept as shown in figure, touching each other, with their centres on a straight line. If their centres are marked \(P, Q, R\) respectively, the distance of centre of mass of the system from \(P\) (origin) is
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