Air at 20C and 1 atm flows at 2 m/s past a sharp flat plate, Assuming that

Question:

Air at 20°C and 1 atm flows at 2 m/s past a sharp flat plate, Assuming that the Kármán parabolic-profile analysis, Eqs. (7.6−7.10), is accurate, estimate (a) the local velocity u; and (b) the local shear stress τ at the position
(x, y) = (50 cm, 5 mm).