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Infinite number of masses, each of mass m, are placed along a straight line at distances r, 2r, 4r, 8r etc. from a reference point O. The gravitational field at O will be

Answer» Infinite number of masses, each of mass m, are placed along a straight line at distances r, 2r, 4r, 8r etc. from a reference point O. The gravitational field at O will be


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