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April 19, 2014

Homework Help: physics

Posted by zac on Friday, September 3, 2010 at 1:53am.

An 18-year-old runner can complete a 10.0 km course with an average speed of 4.51 m/s. A 50-year-old runner can cover the same distance with an average speed of 4.31 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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