Working of rocket or jet is based on:

1. Newton's first law
2. Newton's second law
3. Newton's third law

Rockets and jets operate based on Newton's Third Law of Motion, which states that for every action, there is an equal and opposite reaction. When these vehicles expel gas in one direction, they move in the opposite direction due to this principle. This law is crucial for understanding propulsion in both rockets and jets.
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Answered by Anonymous | 2025-07-04

The working of rockets or jets is mainly based on Newton's Third Law of Motion. This law is one of the fundamental principles in physics and is crucial in understanding how rockets and jet engines operate.
Newton's Third Law states that "For every action, there is an equal and opposite reaction." Let's break down how this applies to rockets and jets:

Rockets : Rockets function on the principle of expelling gas at high speed in one direction. This expulsion is the "action." According to Newton's Third Law, the rocket itself is then pushed in the opposite direction, which is the "reaction." This is how rockets are propelled forward in space, where there is no air to push against. The engines burn fuel, and the combustion gases are expelled downwards, making the rocket move upwards.

Jets : While jets, or jet engines, also work on the same basic principle, they operate within the Earth's atmosphere. Air enters the engine at the front, mixes with fuel and burns, producing exhaust gases that are expelled at the back of the engine. This backward expulsion of gases acts as the "action," and the "reaction" is the forward thrust that moves the jet.


In summary, both rockets and jet engines use the principle of Newton's Third Law to generate thrust, allowing them to move and operate efficiently.

Answered by LucasMatthewHarris | 2025-07-06