Question

4. In a rocket, a large volume of gases produced by the combustion of fuel is allowed
to escape through its tail nozzle in the downward direction with the tremendous speed
and makes the rocket to move upward. Which principle is followed in this take off of the
rocket?
(a) Moment of inertia
(b) Newton's Second Law
(c) Newton's third law of motion
(d) Newton's law of gravitation​

Answer 1

Answer:

Maybe the answer is Newton's third law of motion (c)

Answer 2

(c) Newton's third law of motion is followed in rocket moving upward.

Explanation:

Newton's third law of motion:

"Any force of action will have a reaction which is equal in magnitude and opposite in direction to the action force".

• Newton's third law talks about the direction of force.

• It states that force always comes in action-reaction pair.

• Example: A body kept on a table will not fall down because the table exerts the same amount of force on the body as it exerts on the table due to gravity, which is its weight.

• When a Rocket is launched, a large volume of gas that is produced by the combustion of fuel is allowed to escape.

• This fuel escaping down creates a force in the downward direction which has to have an opposite reaction and so the rocket is launched upward in the opposite direction due to the enormous force created.