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July 31, 2015

Homework Help: physics

Posted by Anonymous on Sunday, October 7, 2012 at 1:40am.

An 18-year-old runner can complete a 10.0-km course with an average speed of 4.53 m/s. A 50-year-old runner can cover the same distance with an average speed of 3.91 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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