Measure of how much distance is passed per time taken.
m/s or ms−1
Average speed=Time takenDistance travelled
Equations and Symbols
For constant speeds the gradient of the straight line is equal to the speed.
Speed in a given direction: Two objects moving in opposing directions at the same speed travel at the same speed, but not with the same velocity.
The change of velocity per unit of time. A negative value of a is called deceleration.
speeds=u,v (with speed changing from u to v)
Constant acceleration is the gradient of the line relative to the horizontal line at speed u.
The distance travelled given acceleration and time can be read from the area of the graph. It's equal to the area!