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Physics

Momentum Conservation

Quick fact

The conservation of momentum is a direct consequence of Newton's third law: for every action, there is an equal and opposite reaction. No external force means total momentum stays the same.

Why this is interesting

Have you ever wondered why a cannon recoils backwards when it fires a cannonball forward, or why a figure skater spins faster when pulling their arms in? The answer lies in a hidden quantity that nature insists on keeping constant: momentum.