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The speed of the wind passing over the w...

The speed of the wind passing over the wings of a small aeroplane is 70 m/s and below the wing is 60 m/s. If the mass of the plane is 1000 kg and the area of wing is `14 m^(2),` then what will be ther net vertical force on the aeroplane ?
? (Density of air `=1.2 kg//m^(3) and g=10 m//s^(2))`

A

2500 N

B

5000 N

C

1250 N

D

7500 N

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The correct Answer is:
B
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