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thrust

propulsion
Also known as: propulsion, propulsive force

Quick Summary

Thrust is a force that propels an object forward. In the context of propulsion, it's generated by expelling mass in the opposite direction, a principle rooted in Newton's second law of motion. This force can be produced by various mechanisms, such as jet engines, which accelerate air or gas to create thrust, or propellers, which move air or water. The efficiency of thrust generation is often related to matching the velocity of the expelled mass to the object's speed, aiming for a minimal difference to maximize propulsive efficiency.123

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