An incompressible frictionless flow field is given by \(\vec{V}=(A x+B y) \hat{i}+(B x-A y) \hat{j}\), where \(A=2 \mathrm{~s}^{-1}\) and \(B=2 s^{-1}\), and the coordinates are measured in meters. Find the magnitude and direction of the acceleration of a fluid particle at point \((x, y)=(2,2)\). Find the pressure gradient at the same point, if \(\vec{g}=-g \hat{j}\) and the fluid is water.