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Question

A rocket works on the

A
First law of motion
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B
Second law of motion
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C
Third law of motion
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D
Law of conservation of energy
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Solution

The correct option is C Third law of motion
Rocket propulsion does follow the third law of motion. Every action has an equal and opposite reaction. When the liquid or gas is pushed out of the rocket, it pushes the rocket forward. Because as per the first law of motion, an object will always try to conserve its momentum or remain in its state of rest. So when there is a force that pushes the liquid or gas out it pushes back to maintain the state of rest.


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