Question

what is physical principal involed in working of rocket

Answer 1

The rocket propulsion is based on Newton’s third law of motion which states that for every action there is equal and opposite reaction. In rocket propulsion, thrust is obtained by the reaction of ejection of high velocity gases. Propellants are combined in a combustion chamber where they chemically react to form hot gases which are then ejected at high velocity through a small opening at one end of the chamber (nozzle) imparting a momentum in the opposite direction to rocket.

Answer 2

$\huge\bf{Answer:-}$

Newton's 3rd law of motion For each and every action there's a opposite reaction.

Further Explanation

It is said that netowns law 3 also i consider that Instead of running the rocket to the ground and then pushing it into the sky, the engine is easily able to lift it directly into the air.

Both the rocket and the aeroplane operate on the same principle. The two leave the gases behind and this causes them to push forward.

The plane is heavier and has to be overtaken by the wind at a very high speed to rise.

So it gets as much force as the air from the wings by walking some distance on the first runway.