Consider a flow over a $20$ flat plate as shown blow with a free stream velocity, $u_{}$ of $5\frac{m}{s}.$ Calculate the boundary layer trickness $,$ if the flow becomes turbutent at $x_{cr}=0\mathrm{.}01332m$ and the flow Kinematis viscosity is $V=1\mathrm{.}48{10}^{-5}\frac{m^2}{s}.$

$=5\sqrt[\phantom{2}]{\frac{v{x}_{cr}}{u}}$ where $x_{cr}=\frac{vR{e}_{cr}}{u_{}}$