CONCEPT:Distribution of velocity profile:In a fully developed LAMINAR pipe flow, the average velocity is one half of the maximum velocity i.e. Umax = 2Uavg\(\begin{array}{l} U (r) = U_{MAX}\left[ {1 - {{\left( {\frac{r}{R}} \right)}^2}} \right] \end{array}\)\(\begin{array}{l} U (r) = 2{U_{av}}\left[ {1 - {{\left( {\frac{r}{R}} \right)}^2}} \right] \end{array}\)Calculation:GIVEN:Uavg = 5 m/s, R = 10 cm, r = 5 cm\(U = 2 \times 5\left[ {1 - {{\left( {\frac{5}{{10}}} \right)}^2}} \right] = 7.5\;m/s\)