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Rocket propulsion is a system that operates on Newton's third law: every action has an equal and opposite reaction. Fuel and oxidizer are burned to create hot gases that are expelled at high speed from a nozzle at the rear of the rocket, providing thrust. This process provides the power needed to propel the rocket beyond Earth's atmosphere into space, where there is no air, making the engine more efficient.
How it works:
Fuel & Oxidizer: Fuel (such as liquid hydrogen or solid fuel) and an oxidizer (such as liquid oxygen) are mixed inside the rocket.
Combustion: They are burned in a combustion chamber, producing very hot and high-pressure gases.
Thrust: These gases escape very quickly through the nozzle, exerting a powerful force (thrust) on the rocket in the opposite direction, causing it to accelerate upward.
Key Principle:
Newton's Third Law: When gases escape downwards, an upward force is applied on the rocket.
Conservation of Momentum: The momentum given by the rocket to the gases is given by the gases to the rocket in the opposite direction, due to which the rocket moves forward.
Effect in Space:
Because there's no air in space, the gases escaping from the nozzle encounter no resistance, allowing them to escape faster and providing more thrust to the rocket. Therefore, rocket engines perform more efficiently in space.
In short, rocket propulsion propels a rocket into space by ejecting gases at high speeds, and it is based on the principle of action-reaction.#nasa #isaro #isarotv #explorephysics #spaceexploration #spacefacts #spacescience #spacesavingfurniture
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