Physics - Fluid Question with Solution | TestHub

The velocity distribution in a viscous flow over a plate is given by $u=4y-y^2$ for $y\le 2m$ where $u$ is velocity in $\mathrm{m}/\mathrm{s}$ at a point which is at a distance y from the plate. If the coefficient of dynamic viscosity is 1.5 in SI units, the shear stress at $\mathrm{y}=0$ in $\mathrm{N}/{\mathrm{m}}^2$ is :-