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5. Air flows over the upper surfaces of
the wings of an aeroplane at a speed
of 12.0 ms. If the lift force on the
aeroplane is 2.97 x 10' N, calculate
the speed of the air past the lower
surfaces of the wing (take the total
wing area to be 20.0 m² and the
density of air as 1.29 kgm ?).
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Answer:
the total Air flows over the upper surfaces of wings of an aeroplane at a speed of 12.0ms