Air, =1.2 kg/m3 and = 1.8E5 kg/ms, flows at 10 m/s past a flat plate. At the

Question:

Air, ρ =1.2 kg/m3 and μ = 1.8E−5 kg/m⋅s, flows at 10 m/s past a flat plate. At the trailing edge of the plate, the following velocity profile data are measured:
y, mm: 0 0.5 1.0 2.0 3.0 4.0 5.0 6.0
u, m/s: 0 1.75 3.47 6.58 8.70 9.68 10.0 10.0
u(U − u), m2/s: 0 14.44 22.66 22.50 11.31 3.10 0.0 0.0
If the upper surface has an area of 0.6 m2, estimate, using momentum concepts, the friction drag, in newtons, on the upper surface.