* Meters per second (m/s): This is the standard unit of speed in the International System of Units (SI).
* Kilometers per hour (km/h): Commonly used for road vehicles.
* Miles per hour (mph): Used in the United States and some other countries.
* Feet per second (ft/s): Used in some engineering applications.
* Knots (kn): Used for nautical speed (1 knot equals 1 nautical mile per hour).
The specific unit used depends on the context and the desired level of precision.
