The vertical line on a graph.

A change in motion caused by an unbalanced force acting on an object

A system that uses coordinates or background objects to establish position or to measure movement of a point in space

The change in an object’s position with respect to time and in comparison with the position of other objects used as reference points

The rate of change of position (or distance traveled) with respect to time

Measurement of speed and direction of an object

20m/s

20 m / $$s^2$$   

20 m/s North