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26-09-2022
Physics

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An 18-year-old runner can complete a 10.0 km course with an average speed of 4.60 m/s. A 50-year-old runner can cover the same distance with an average speed of 4.13 m/s. How much later (in seconds) should the younger runner start in order to finish the course at the same time as the older runner?

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