Physics Laws & Theorems
Basic

Newton First Law

An object stays at rest or in uniform motion unless acted upon.

Formula

∑F=0⇒constant v\sum F = 0 \Rightarrow \text{constant } v

Variables

FNet force
vVelocity

Example

Inertia keeps things moving

Did You Know?

Newton's first law explains why passengers lurch forward when a bus brakes — their bodies keep moving.

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