Angular Displacement
The angle through which a point or line rotates about a specified axis in a specified direction.
Governing formula
θ = s / r
SI unit
rad (radians)
In depth
One full revolution corresponds to 2π radians (360°). Arc length s equals radius r multiplied by angular displacement θ in radians.
Examples in the real world
A wheel turning through π radians (180°) as a car rolls forward.