As we know that, P= F/ Area(1), if we kept force constant, then P will be inversely proportional to area

but, in other hand, according to beournalues equation P=-kv^2,

according to continuity equation v=constant/area

if we put value of v in pressure equation,

P=-k/Area^2(2)

so, we can see in equation(1) pressure is inversely proportional to area, but in equation (2) pressure is directly. The question is that which relation is correct? explain