This we can write half rho D A 0 V A plus V 1 into V 2 square plus 2 V A V 2. Now, if we put as we did before, if we equate is the same equation actually, what we did last time and this equation is same and we can show that V A plus V 1 is equal to V A plus V 2 by 2 or V 1 is equal to V 2 by 2, that is, even when you are imposing a rotational velocity, we see that far field increment in axial velocity is twice the axial velocity increase at the disc. Is that clear?