Answer:
The adapted expression for average acceleration is
.
Explanation:
Let be
, which can be adapted by using the following substitution:

Where:
- Final instant, measured in seconds.
- Initial instant, measured in seconds.

Where:
- Final velocity, measured in meters per second.
- Initial velocity, measured in meters per second.
- Average acceleration, measured in meters per square second.
Now, average acceleration is cleared:

Given that
and
, then:
