1. Understand the Concepts

* Acceleration: The rate of change of velocity over time.

* Formula: Acceleration (a) = (Final Velocity (vf) - Initial Velocity (vi)) / Time (t)

2. Identify the Given Information

* Initial velocity (vi) = 25 m/s

* Final velocity (vf) = 30 m/s

* Time (t) = 10.0 s

3. Apply the Formula

a = (30 m/s - 25 m/s) / 10.0 s

a = 5 m/s / 10.0 s

a = 0.5 m/s²

Answer: The magnitude of the acceleration is 0.5 m/s².