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Force and Laws of Motion — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceForce and Laws of Motion1 Mark
Question
A rocket works on the which law of motion:
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Answer

  1. Newton's third law
Explanation:
Third law - A rocket works by expelling gases from one end at a very high velocity.
The escaping gases have a very high speed and this with their mass translates to a very large momentum.
Due to the principle of conservation of momentum the body of the rocket is pushed forward.
If both the momentum of the gases as well as that of the rocket are added the sum is zero.

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