1. Displacement: This is the change in position of the object. It's not just the distance traveled, but the straight-line distance between the starting and ending points, along with the direction of that movement.
2. Time: This is the duration over which the displacement occurred.
Velocity is a vector quantity, meaning it has both magnitude (speed) and direction. To calculate velocity, you divide the displacement by the time taken:
Velocity = Displacement / Time