Classical Mechanics
Normal Force Explained
The invisible push a surface gives back when you press on it is the normal force — and it is…
Classical Mechanics
Classical Mechanics
Gravitational Force and Newton’s Law of Gravitation
The same force that drops an apple holds the Moon in orbit, and Newton captured it all in one famous…
Classical Mechanics
Conservation of Momentum
When no outside force interferes, the total momentum of a system stays locked in place, which is why rockets fly…
Classical Mechanics
What Is Energy?
Energy is the universal currency that lets one thing change another, never created or destroyed but endlessly traded between motion,…
Classical Mechanics
Newton’s Second Law: F = ma
The most famous equation in mechanics ties force, mass, and acceleration into a single rule that predicts how every push…
Classical Mechanics
Newton’s Laws of Motion: All Three Laws Explained
Three short rules from 1687 still govern every car, rocket, and falling apple, turning the chaos of motion into a…