Answer:

Step-by-step explanation:
Acceleration is the change in velocity over time, so it is calculated using the following formula.

The object is initially moving at 10.5 meters per second. After 2 seconds, it is moving at 13.5 meters per second.
= 10.5 m/s
=13.5 m/s - t= 2 s
Substitute the values into the formula.

Solve the numerator.

Divide.

The acceleration of the object is 1.5 meters per second squared.