Final answer:
The acceleration of the car is -2.8 m/s², indicating that it is decelerating at a rate of 2.8 meters per second squared.
Step-by-step explanation:
To calculate the acceleration of the car, we can use the equation:
acceleration = (final velocity - initial velocity) / time
In this case, the car comes to a stop, so the final velocity is 0 m/s. The initial velocity is given as 14 m/s, and the time taken to stop is 5.0 seconds. Plugging these values into the equation, we get:
acceleration = (0 - 14) / 5.0 = -2.8 m/s²
Therefore, the acceleration of the car is -2.8 m/s², indicating that it is decelerating at a rate of 2.8 meters per second squared.