MCQ : The motion of the rocket is based on the principle of conservation of

Question

The motion of the rocket is based on the principle of conservation of

1. mass
2. kinetic energy
3. linear momentum
4. angular momentum

Answer

linear momentum

Explanation

The motion of a rocket is based on the principle of conservation of linear momentum. According to Newton’s third law of motion, every action has an equal and opposite reaction. In a rocket, the force of the gases expelled from the rocket engine creates an equal and opposite force in the opposite direction, which propels the rocket forward.