1. The initial velocity (vi) of the object in meters per second (m/s).

2. The final velocity (vf) of the object in m/s.

3. The time (t) it takes for the object to change velocity, in seconds (s).

The formula for calculating acceleration (a) is:

```

a = (vf - vi) / t

```

Where:

- a is acceleration in m/s²

- vf is final velocity in m/s

- vi is initial velocity in m/s

- t is time in seconds

By substituting the values of vi, vf, and t into the formula, you can calculate the acceleration of the object.