Recalling that the continuity equation is $\backslash$rho $1$A$1$v$1=\backslash$rho $2$A$2$v$2,$ if an incompressible fluid is moving through a pipe with a $1-$m$2$ cross section at $10$ m$/$s$,$ what will the velocity be if the cross$-$sectional area of the pipe reduces to $0\mathrm{.}25$ m$2?$