Calculate Average Acceleration of a Car: Example with Solution

The average acceleration can be calculated using the formula:

average acceleration = (change in velocity) / (time interval)

In this case, the change in velocity is the difference between the final velocity and the initial velocity, and the time interval is 4.0 s.

Change in velocity = 30.0 m/s - 20.0 m/s = 10.0 m/s

Average acceleration = (10.0 m/s) / (4.0 s) = 2.5 m/s^2

Therefore, the magnitude of the car's average acceleration in the 4.0 s interval is 2.5 m/s^2.