A change of speed per unit time is called
Velocity
Accelerating
If the speed is increasing...
the object is accelerating
the velocity is changing
The area under a speed-time graph is equal to the
distance travelled
time taken
speed travelled
acceleration = change in speed (or velocity) x time taken
A negative acceleration shows...
the car is decelerating
the car is travelling in a different direction
Calculating distance is finding the area of the space underneath the speed-time graph
For a triangle it would be: ½ base x height
The velocity of an object is its speed in a particular direction.