Question

Rocket works on the principle of  conservation of 

mass

energy

momentum

velocity

​

Answer 1

Answer:

Rocket works on the principle of conservation of momentum.

Explanation:

Rocket ejaculates gases in backward direction which creates momentum of the gases backwards and thus by conservation of momentum, the rocket gets a momentum in the forward direction making it to move forward.

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Answer 2

Answer:

MOMENTUM

Explanation:

Rocket ejaculates gases in backward direction which creates momentum of the gases backwards and thus by conservation of momentum, the rocket gets a momentum in the forward direction making it to move forward.