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Home > Courses > 1P91_Sternin
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An 18-year-old runner can complete a 10.0-km course with an average speed of 4.38 m/s. A
50-year-old runner can cover the same distance with an average speed of 4.27 m/s. How
much later should the younger runner start in order to finish the course at the same time as
the older runner?
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