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Three identical spheres each of radius 'R' and touching each other so that the centres A,B and C lie on a straight line. The position of their centre of Mass from A is

\[\begin {array} {1 1} (a)\;\frac{2R}{3} \\ (b)\;2R \\ (c)\;\frac{5R}{3} \\ (d)\;\frac{4R}{3} \end {array}\]

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Hence B is the right answer
answered Nov 20, 2013 by meena.p
edited Apr 2, 2014 by balaji.thirumalai

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