Velocity (r or v) –
Velocity is defined as a vector measurement of the rate and direction of motion or, in other terms, the rate and direction of the change in the position of an object.Velocity is the speed of an object plus its direction. Speed is called a scalar quantity and velocity is a vector quantity. Vector quantities mean that it can be described by both magnitude and direction.
Formula for Velocity = Displacement / Time;
v = d/t
Unit for Velocity is metre second-1
Symbol for Velocity is ms-1