Jet propulsion: identify the correct thrust mechanism. Choose the statement that correctly describes how thrust is produced in jet propulsion systems.

Concept/ApproachJet propulsion (including turbojets and rockets) produces thrust by high-velocity ejection of propellant/exhaust gases from within the vehicle, generating a reaction force according to momentum conservation.

Option checkA Correct for jets/rockets.B Describes propellers, not jets.C Not generally true for air-breathing jets (requires air); it is true only for rockets.

Final AnswerThe propulsive matter is ejected from within the propelled body.