Intuition: We know that for a given network N(G(V,E),s,t,c), anf a maximum flow f, every minimal cut in N is saturated under f.
As fir out problem, we can infer that the cut {s},V-{s} is not necessarily minimal - What if we create a network in which the edges adjacent to s are much larger than those of a minimal cut?
Try to think of a counter example satisfying this condition.