Question

Describe rocket propulsion

Answer 1

Hyy Dude

Rocket propulsion is the system that uses force to lift a rocket off the ground. ... solid propulsion: the fuel and oxidizer are combined as a solid. liquid propulsion: the fuel and oxidizer are stored separately, then later combined and ignited.

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Answer 2

it works on the principal of conservation of mass...

the rocket ejects a massive amount of gaseous mass with a high kinetic energy

and according to Newton's 3rd law of motion the rocket gains the same amount of impulse