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Question

Propulsion of rockets is based on the .

A
conservation of energy
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B
newton's third law
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C
archimedes' principle
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Solution

The correct option is B newton's third law
The rocket works on newton's third law of motion. When the rocket is fired, this fuel is burnt and a hot gas is ejected with a high speed, producing a huge momentum. To balance this momentum, an equal and opposite reaction force is produced, which makes the rocket project forward.

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