AP EAMCET · PHYSICS · Mechanical Properties of Fluids
A fully loaded Boeing air craft has a mass of \(3.3 \times 10^5 \mathrm{~kg}\). Its total wing area is \(500 \mathrm{~m}^2\). It is in level flight with a speed of \(960 \mathrm{~km} / \mathrm{h}\). Estimate the pressure difference between the lower and upper surfaces of the wings.
- A \(4.5 \times 10^3 \mathrm{Nm}^{-2}\)
- B \(5.5 \times 10^3 \mathrm{Nm}^{-2}\)
- C \(6.5 \times 10^3 \mathrm{Nm}^{-2}\)
- D \(7.5 \times 10^3 \mathrm{Nm}^{-2}\)
Answer & Solution
Correct Answer
(C) \(6.5 \times 10^3 \mathrm{Nm}^{-2}\)
Step-by-step Solution
Detailed explanation
Mass of boeing air craft, \(M=3.3 \times 10^5 \mathrm{~kg}\) Wing's area, \(A=500 \mathrm{~m}^2\) The weight of boeing aircraft is balanced by upward force due to the pressure difference. Hence, \(\Delta p \times A=m g\)…
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