The centre of mass of a non uniform rod of length L whose mass per unit length λvaries as λ ∝ x2 where k is a constant & x is the distance of any point on rod from left end A is (from the same end)
(A) at the centre of the rod
(B) is at x =3L/4
(C) is at x = 4L/5
(D) is at x = 5L/6
