Question

A runner dashes from the starting line (x = 0) to a point 80 m away and then turns around and runs to a point 39 m away from the starting point in 23 seconds.What is the runner's average velocity in the previous problem?
Change in location (41 m) divided by time. Is 23 seconds the total time spent running or the time spent running back? You don't make that clear.
6.4

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