The jet is traveling at a speed of 500 mi>h, 30 with the
Chapter 15, Problem 15-143(choose chapter or problem)
The jet is traveling at a speed of 500 mi>h, 30 with the horizontal. If the fuel is being spent at 3 lb>s, and the engine takes in air at 400 lb>s, whereas the exhaust gas (air and fuel) has a relative speed of 32 800 ft>s, determine the acceleration of the plane at this instant. The drag resistance of the air is FD = (0.7v2 ) lb, where the speed is measured in ft>s. The jet has a weight of 15 000 lb. Hint: See Prob. 15142
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