Definition:Acceleration

Definition
The acceleration of a body $$M$$ is defined as the first derivative of the velocity of $$M$$ with respect to a given point of reference.

Colloquially, it is described as the rate of change of velocity.

It is important to note that as velocity is a vector quantity, then it follows from Derivative of a Vector that so is acceleration.

Also see

 * Displacement
 * Position


 * Velocity
 * Speed

Linguistic Note
The word acceleration comes from the Latin for to add speed.