velocity physics definition
Usage We normally think of velocity as the speed at which an object is traveling. But in physics, velocity and speed are not the same. Like speed, velocity refers to the rate at which an object is movingâthe distance per unit of time.But velocity in physics also includes the direction in which the object is moving, whereas direction has no bearing on an object's speed.ut in physics, velocity and speed are not the same. Like speed, velocity refers to the rate at which an object is movingâthe distance per unit of time.