Question

The concept of rocket launching is based on-
(a) First law of motion
(b) Second law of motion
(C) Law of conservation of mass (d) Law of conservation of momentum.​

Answer 1

Answer:

Newton's third law of motion

Explanation:

Third law - A rocket works by expelling gases from one end at a very high velocity. The escaping gases have a very high speed and this with their mass translates to a very large momentum. Due to the principle of conservation of momentum the body of the rocket is pushed forward. If both the momentum of the gases as well as that of the rocket are added the sum is zero

Answer 2

Answer:

(b) Second law of motion