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$72.3 km/h$

Giancoli 6th Edition, Chapter 2, Problem 1


Chapter 2, Problem 1 is solved.

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Transcript for this Giancoli solution

The average velocity of a car is the total distance it travels divided by the time it takes to do it. In this case it goes two hundred and thirty five kilometers in three point two five hours. So this gives an average speed of seventy two point three kilometers per hour. In the 5th Edition, it travels only two hundred and thirty kilometers for an average speed of seventy point eight kilometers per hour.