m/s, km/h, and mph are the units used to measure both velocity and speed
Velocity is a vector quantity that denotes the rate of change of position of an object with respect to time, while speed is a scalar quantity that denotes the rate of motion or action of an object. Velocity and speed are calculated using the same units such as kilometers per hour (km/h), meter per second (m/s) and miles per hour (mph).
