Physics

To find the car's average velocity, we need to consider the total displacement and the total time taken.

Displacement:

The car travels:

100 km north

100 km east

100 km south

After traveling north and then south, the net north-south displacement is 100km - 100km = 0km.

The net east-west displacement is 100km east.

Thus, the total displacement is 100 km east.

Total Time:

The time taken for the entire trip is 5 hours.

Then, calculate average velocity:

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