A Boeing-737 airliner has a mass of 20 000 kg.The total area of the wings is 100 m².What must be the pressure difference between the top and bottom of the wings to keep the airplane up? A)1 960 Pa B)3 920 Pa C)7 840 Pa D)15 700 Pa

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Quizplus · Accepted Answer

The pressure difference is given by the formula:$$\Delta p = \frac{2mg}{A}$$where:* $\Delta p$ is the pressure difference* $m$ is the mass of the airplane* $g$ is the acceleration due to gravity* $A$ is the total area of the wingsPlugging in the given values, we get:$$\Delta p = \frac{2(20 000 	ext{ kg})(9.8 	ext{ m/s}^2)}{100 	ext{ m}^2} = 3920 	ext{ Pa}$$Therefore, the pressure difference between the top and bottom of the wings must be 3920 Pa to keep the airplane up.

A Boeing-737 Airliner Has a Mass of 20 000 Kg