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The jet engine has a deflector at the exit as shown in figure above.

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The jet engine has a deflector at the exit as shown in figure above. The system admits air (assumed to be an ideal gas) at 1 atm and 20°C, where A = 0.5 m2 and V1 = 250 m/s. Assumed air leaves outlet at 1 atm and V2 = 900 m/s. The fuel air rating is 1:28.1. Determine the magnitude of reaction force R, in kN, that acts on the test stand to maintain the sytem (engine and deflector) at static condition.

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