1. Law "Law of Inertia"
It may be standing still or moving at a constant speed. In real life, we can think of the question, "Are we moving?"
Must be Fnet=0 so a=0
2. Law "Law of Acceleration"
"F=m.a" Force is directly proportional to acceleration. In real life, we can think about the acceleration of the car.
3. Law "Law of Aciton and Reaction"
The mutual forces of action and reaction between two bodies are equal, opposite and collinear.
In real life, we can ask the question "Why do our hands hurt when we hit the wall".
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