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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

620 N upward

B

920 N upward

C

620 N downward

D

920 N downward

Text Solution

Verified by Experts

The correct Answer is:
B
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TARGET PUBLICATION-FRICTION IS SOLIDS AND LIQUIDS -MCQ (COMPETITIVE THINKING)
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