SOLUTION: An 18-year-old runner can complete a 10.0-km course with an average speed of 4.74 m/s. A 50-year-old runner can cover the same distance with an average speed of 4.17 m/s. How much
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Question 1145150: An 18-year-old runner can complete a 10.0-km course with an average speed of 4.74 m/s. A 50-year-old runner can cover the same distance with an average speed of 4.17 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? Answer by ikleyn(52787) (Show Source):
First find the time for the 18-years old runner.
It is = seconds.
Next find the time for the 50-years old runner.
It is = seconds.
The difference - will be your answer, in seconds.
