consider a flat plate ac zero angle of attach in an airflow at standard sea level condition with upstream pressure of $1\mathrm{.}01$ x$105$ N$/$m$2$ upstream Temperature of $288$ k$,$ upstream viscosity of $1\mathrm{.}7894$x$165$ N$.$S and upstream m$^2$ Velocity of $100$ m$/$s; If chord length is $2$m and planform area is $40$ m$^2,$

calculate:

a$)$ Friction Drag on the place

b$)$ Boundary Layer Thickness at the leading edge. R$=287$ gyma$=1\mathrm{.}4$