An aeroplane of mass $3 \times 10^4\, kg$ and total wing area of $120\, m^2$ is in a level flight at some height. The difference in pressure between the upper and lower surfaces of its wings in kilopascals is $(g=10\,m/s^2)$
An aeroplane of mass $3 \times 10^4\, kg$ and total wing area of $120\, m^2$ is in a level flight at some height. The difference in pressure between the upper and lower surfaces of its wings in kilopascals is $(g=10\,m/s^2)$
- A
$2.5$
- B
$5.0$
- C
$10.0$
- D
$12.5$
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