State Newton's third law of motion and give two examples to illustrate the law.

Newton’s third law of motion states that for every action, there is an equal and opposite reaction.

This means when one body applies a force on another, the second body applies an equal but opposite force back on the first. The forces act on different bodies but are equal in magnitude and opposite in direction.

Examples:

• Walking: When we push the ground backward with our foot, the ground pushes us forward.
• Rocket Launch: Hot gases are expelled downward, and the rocket moves upward with equal force.