The speed formula is: speed = distance ÷ time, and the mathematical expression is: v = s/t. V stands for speed, unit: m/s, s stands for distance, unit: m, t stands for time, and unit: s.
Introduction:
Velocity is a physical quantity that describes the moving speed of an object and is defined as the rate of change of displacement with time.
Speed is a vector. Junior high school definition: the distance an object moves in unit time is called speed. Velocity is numerically equal to the distance traveled by a moving object in a unit time. Definition: v=s/t In the international system of units, the basic unit is meters per second (m/s). Physical meaning: Speed is a physical quantity that describes the speed of an object.