Answer:
Acceleration is the rate of change in velocity.
Step-by-step explanation:
We know that velocity is a vector magnitude. Its module is called speed. There is a vector magnitude called acceleration which is the rate of change in velocity. The acceleration explains how velocity changes in module, direction or its sense.
For example :
If the acceleration vector and velocity vector have the same direction and sense, this means that the module of the velocity vector is increasing (speed)
If the acceleration vector and velocity vector have the same direction but opposite senses, this means that the module of the velocity vector is decreasing (speed).
Further the acceleration vector can change the direction of the velocity vector.
The units of acceleration are units of lengths over square time units.
For example :
Where ''m'' is meter
And where ''s'' is second.