A certain flow field has the velocity vector (mathbf{V}=frac{-2 x y z}{left(x^{2}+y^{2} ight)^{2}} mathbf{i}+frac{left(x^{2}-y^{2} ight) z}{left(x^{2}+y^{2} ight)^{2}}

A certain flow field has the velocity vector

\(\mathbf{V}=\frac{-2 x y z}{\left(x^{2}+y^{2}\right)^{2}} \mathbf{i}+\frac{\left(x^{2}-y^{2}\right) z}{\left(x^{2}+y^{2}\right)^{2}} \mathbf{j}+\frac{y}{x^{2}+y^{2}} \mathbf{k}\). Find the acceleration vector for this flow.