Starting from the definitions of Reynolds Number which is given in terms of the average velocity of fluid $($:$v$:$),$ derive an alternative expression for the $N_{Re}$ in terms of;

a$-$ Mass flow rate, $m,$ mass$/$time

b$-$ Mass velocity, G$,($mass$)/($cross sectional area $.$time$)$

c$-$ Kinematic viscosity, v$,$ viscosity$/$density

$N_{Re}=\frac{D}{}$