Two uniform rods A and B of Lengths 5 m and 3 m are placed end to end. If their linear densities are $3\;kg/m$ and $2\;kg/m$, the position of their centre of mass from their interface is

Question

a) 19/14 m on the side of the heavier rod. b) 8/7 m on the side of higheir rod. c) 2 m on the side of heavior rod. d) 2 m on the side of lighter rod.