Here's a breakdown:

* Acceleration is the rate of change of velocity.

* Average acceleration is the total change in velocity over a specific time interval, divided by that time interval.

* Change in velocity is a vector quantity, meaning it has both magnitude (speed) and direction.

Therefore, the direction of average acceleration will be the same as the direction of the change in velocity.

Example:

Imagine a car moving east at 10 m/s, and then it accelerates to 20 m/s east. The change in velocity is 10 m/s east (20 m/s east - 10 m/s east). Therefore, the average acceleration is also in the eastward direction.

Important Note:

* If the velocity changes direction, the average acceleration will be in the direction of the net change in velocity, which may not be the same as the direction of the final velocity.

* If the velocity changes magnitude but not direction, the average acceleration will be in the same direction as the velocity.