Question

The potential energy of a particle varies with distance x from a fixed origin as `U=(Asqrtx)/(x+B)`, where A and B are constants. The dimensions of AB are

Options:
(a) `[ML^(5'/'2) T^(-2)]` (b) `[ML^2 T^(-2)]` (c) `[M^(3'/'2L^3 T^(-2)]` (d) `[ML^(7/2) T^(-2)]`