The flow field is defined by the flow function $($x$,$y$)=$y$^2-$x$.$ $1($x$,$y$)=0$ $2($x$,$y$)=2$m$^2/$s and $3($x$,$y$)=4$m$^2/$s$.$ What is the speed of the fluid particle at y$=1$ in the streamline defined as $2($x$,$y$)=2$m$^2/$s$?$ From the equation $($x$,$y$)=$y$^2-$x$,$ all three functions are found as follows