Understanding the Concepts

* Acceleration: The rate at which an object's velocity changes over time.

* Initial Velocity (v₀): The velocity of the object at the beginning of its motion.

* Final Velocity (v): The velocity of the object at the end of its motion.

* Time (t): The duration of the motion.

Formula

The formula for acceleration is:

* a = (v - v₀) / t

Applying the Information

1. Initial Velocity (v₀): 5 meters per second

2. Final Velocity (v): 2 meters per second

3. Time (t): 30 seconds

Calculations

* a = (2 - 5) / 30

* a = -3 / 30

* a = -0.1 meters per second squared

Answer

The acceleration of the ball is -0.1 meters per second squared. The negative sign indicates that the ball is slowing down (decelerating).