Physics
Newton's laws of motion
Inertia, F=ma, action–reaction — the three laws all of mechanics rests on.
Newton's three laws are the foundation of classical mechanics.
The three laws
- 1st (inertia) — an object stays at rest or in uniform motion unless a force acts on it.
- 2nd — F = ma. Force equals mass times acceleration.
- 3rd — for every action there's an equal and opposite reaction.