A rocket-nozzle designer is concerned about the force required to hold the nozzle section on the body of a rocket. The nozzle section is shaped as shown in the figure. The pressure and velocity at the entrance to the nozzle are 1.5 MPa and 100 m/s. The exit pressure and velocity are 80 kPa absolute and 2000 m/s. The mass flow through the nozzle is 220 kg/s. The atmospheric pressure is 100 kPa. The rocket is not accelerating. Calculate the force on the nozzle-chamber connection.

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V, = 2000 m/s u = 100 m/s m = 220 kg/s A = 1 m2 A = 2 m? p = 1.5 MPa Nozzle P.= 80 kPa Chamber Po = 100 kPa