A 68 kg runner runs a marathon (42.2 km) at a pace of 15 km/h.To expend the same number
Chapter 11, Problem 39(choose chapter or problem)
A 68 kg runner runs a marathon (42.2 km) at a pace of 15 km/h.To expend the same number of Calrnies as she did in running thisrace, how many 2.7-m-high flights of stairs would she need to climb?
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