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A thin bar of length L has a mass per unit length λ , that increases linearly with distance from one end .If its total mass is M and its mass per unit length at the lighter end is λ0 , then the distance of the centre of mass from the lighter end is :

(a)L2λ0L24M(b)L3+λ0L28M(c)L3+λ0L24M(d)2L3λ0L26M

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