Definition of Speed
The definition of speed is written as follows,
Speed is the rate of change of distance travelled by an object with respect to the time elapsed.
Speed Formula
Speed is calculated as the ratio of distance travelled to the time taken. Hence, formula of speed is given as
Speed = Distance/Time
Unit of Speed
Unit of Speed is meters per second or m/s. Speed is a physical quantity that measures the distance travelled by an entity per unit of time. The most commonly used units for speed are meters per second (m/s), kilometres per hour (km/h) and miles per hour (mph). Speed and Velocity are the same physical quantity except for the difference that velocity is a vector quantity and speed is a scalar quantity, so speed and velocity units are the same.
In this article, we will learn the definition of speed, the unit of speed, conversion between units in various systems, sample problems, and frequently asked questions related to the unit of speed.
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