Physics

To calculate the car's average velocity over the entire 30 seconds, we need to find the total distance traveled during that time and then divide it by the total time.

 

Calculate the total distance and total time

The distance during acceleration:

First, we need to find the acceleration (a):

 

The car accelerates from rest (initial velocity ) to a final velocity () over a time (). The formula for distance during acceleration is:

 

Substituting the values into the distance formula:

 

The distance at constant velocity:

The car continues at a constant velocity () for a time (

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