The jet engine on a test stand in the figure given below admits air at 20C and 1 atm at section 1 , where A1=0.5m2 and V1=250ms. The fuel-to-air ratio is 1:30. The air leaves section 2 at atmospheric pressure and higher temperature, where V2=1/80m/s and A2= 0.4m2. The density at surface 1 is 1.205kg/m3. Compute the horizontal test stand reaction Rx needed to hold this engine fued