Speed = Distance / Time

Where:

* Speed is the rate at which an object moves.

* Distance is the total length of the path traveled by the object.

* Time is the duration of the movement.

Units of Measurement:

* Speed is typically measured in units of meters per second (m/s), kilometers per hour (km/h), or miles per hour (mph).

* Distance is measured in units of meters (m), kilometers (km), or miles (mi).

* Time is measured in units of seconds (s), minutes (min), or hours (h).

Example:

If a car travels 100 kilometers in 2 hours, its speed can be calculated as:

Speed = Distance / Time

Speed = 100 km / 2 h

Speed = 50 km/h