Rate of change of displacement is called

Velocity is defined as the rate of change of displacement with respect to time. Unlike speed; which is a scalar quantity; velocity is a vector quantity; meaning it has both magnitude and direction. In physics; velocity helps describe motion in a precise way. For example; a car moving north at 60 kilometers per hour has a velocity; while saying it moves at 60 kilometers per hour without direction gives only speed. Understanding velocity is essential in kinematics and dynamics.