Q$1)$ Th e velocity distribution for the flow of crude oil at $100\backslash$deg F $(\backslash$mu $=8\mathrm{.}105$

lbf$$s$/$ft $2)$ between

two walls is given by u $=100$y $(0\mathrm{.}1$ y$)$ ft $/$s$,$ where y is measured in feet and the space between

the walls is B $=0\mathrm{.}1$ ft$.$ Plot the velocity distribution and determine the shear stress at the walls.