Study of motion _______________________________________________________________________________________________________________________________________________________________________________________________________________________
8. Velocity
As with speed, the SI unit of velocity is the metre per second (m/s). Velocity tells you the speed at which an object is travelling, but it also tells you the direction of travel.
Instantaneous velocity, v: it is the velocity at a given instant.
Instantaneous velocity, v, specifies the velocity of an object each instant in time.
If a body has constant velocity,it does not speed up, slow down or change direction. Its average velocity is the same no matter what time interval during the motion it is measured. In diagrams, you can show a velocity with an arrow.