1. Understand Acceleration
Acceleration is the rate of change of velocity. It's calculated as:
* Acceleration (a) = (Final Velocity (vf) - Initial Velocity (vi)) / Time (t)
2. Identify the Given Values
* Initial Velocity (vi): 15 m/s south (Note: We'll treat south as a negative direction for this calculation)
* Final Velocity (vf): 5 m/s south
* Time (t): 2 seconds
3. Calculate the Acceleration
* a = (5 m/s - (-15 m/s)) / 2 s
* a = (20 m/s) / 2 s
* a = 10 m/s²
Therefore, the acceleration of the car is 10 m/s² south. This means the car is accelerating in the southward direction, slowing down from its initial speed.
