The total drag due to air friction on a jet airplane
Chapter 14, Problem 14.69(choose chapter or problem)
The total drag due to air friction on a jet airplane traveling at 900 km/h is 35 kN. Knowing that the exhaust velocity is 600 m/s relative to the airplane, determine the mass of air which must pass through the engine per second to maintain the speed of 900 km/h in level flight.
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