You have probably noticed that we use words speed and velocity interchangeably, but you can't do it every time. Keep in mind that this velocity formula only works when an object has a constant speed in a constant direction or if you want to find average velocity over a certain distance (as opposed to the instantaneous velocity). If you want to put this rule down in the form of a mathematical formula, the velocity equation will be as follows: It is one of the fundamental concepts in classical mechanics that considers the motion of bodies.
Velocity definition states that it is the rate of change of the object's position as a function of time.