Air at 10oC enters a turbojet engine at a rate (m) of 15 kg/s and at a

Question:

Air at 10oC enters a turbojet engine at a rate (m⋅) of 15 kg/s and at a velocity of 320 m/s (relative to the engine). Air is heated in the combustion chamber at a rate of 25000 kJ/s and it leaves the engine at 420oC. Determine the momentum thrust produced by this turbojet engine. Use the IG model.