NCERT Exercise 9.14 - Mechanical Properties of Fluids
Question: Wind tunnel: speeds on upper and lower wing surfaces are 70 m/s and 63 m/s. Wing area 2.5 m^2, air density 1.3 kg m^-3. Find lift.
Answer: Lift = **about 1.51 x 10^3 N**.
Full step-by-step NCERT solution with diagrams on Something by Zero.