Consider an aircraft powered by a turbojet engine that has a pressure ratio of 9. the aircraft is stationary on the ground, held in position by its brakes. the ambient air is at 7°c and 95 kpa and enters the engine at a rate of 20 kg/s. heating value of 42,700 kj/kg, and it is the jet fuel has a burned completely at a rate of 0.5 kg/s. neglecting the effect of the diffuser and disregarding the slight increase in mass at the engine exit as well as the inefficiencies of engine compo- nents, determine the force that must be applied to hold the plane stationary. 19,370n on the brakes 9-128 consider an aircraft powered by a turbojet engine that has a pressure ratio of 9. the aircraft is stationary on the ground, held in position by its brakes. the ambient air is at 7°c and 95 kpa and enters the engine at a rate of 20 kg/s. heating value of 42,700 kj/kg, and it is the jet fuel has a burned completely at a rate of 0.5 kg/s. neglecting the effect of the diffuser and disregarding the slight increase in mass at the engine exit as well as the inefficiencies of engine compo- nents, determine the force that must be applied to hold the plane stationary.