Question

A fully loaded boeing aircraft has a mass of $5.4×10^5$ kg. Its total wing area is $500 m^2$. It is in level flight with a speed of 1080 km/h. If the density of air 𝜌 is $1.2 kg m^{−3}$, the fractional increase in the speed of the air on the upper surface of the wing relative to the lower surface in percentage will be. ($𝑔=10 m/s^2$)

• A. 16
• B. 10
• C. 8
• D. 6

Answer 1

Answer: (B)

10

Answer 2

The correct option is (B): 10.