# physics

It takes a runner 2 h, 17 min, 59 s to run a marathon. If the distance of a marathon is 42.2 km, what is the average speed of the runner?

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1. avg speed= distance/time
= (42.2 )/time
where time is (2+17/60 + 59/3600)

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👨‍🏫
bobpursley

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