Water flows over a flat plate at a free stream velocity of 0.15 m/s. There is no pressure gradient and medium boundary layer is 6 mm thick. Assume a sinusoidal velocity profile.

\(\frac{u}{{{U_\infty }}} = \sin \left( {\frac{\pi y}{2\delta }} \right)\)

For the flow conditions stated above, calculate the local wall shear (in Pa). Assume μ = 1.02 × 10^-3 kg/ms, ρ = 1000 kg/m³