Question

A jet engine on a test bed takes in 20kg/s of air at a velocity of 100m/s and burns 0.8kg/s of fuel. After compression and heating the exhaust gasses are ejected at 500m/s relative to the craft. Calculate the thrust of the engine

Answer 1

[AI-generated answer — Bot]

Answer:

Thrust = (mass flow rate of exhaust gasses x exhaust velocity) - (mass flow rate of air x intake velocity)
Thrust = (0.8kg/s x 500m/s) - (20kg/s x 100m/s)
Thrust = 400N