A person runs the first half of the path equal to 100 m at a speed of 5 m / s, and the second at a speed of 2.5 m / s.

A person runs the first half of the path equal to 100 m at a speed of 5 m / s, and the second at a speed of 2.5 m / s. Determine your average driving speed.

Divide the entire path by all time and get the average, i.e.
all let 100 * 2 = 200m
all time: 100/5 = 20 s
100 / 2.5 = 40 s
Total
200/60 = 3, (3) m / s



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