5. In the 2019 Boston Marathon, Worknesh Degefa (top women finisher) clocked in at 1:40:48 at the 30 km mark, and again at 1:58:17 at the 35 km mark (Heartbreak Hill). What was her average velocity during this stretch of the marathon?
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1:40:48 = 1 hour * 60 minutes * 60 seconds + 40 minutes * 60 seconds + 48 seconds = 6048 seconds 1:58:17 = 1 hour * 60 minutes * 60 seconds + 58 minutes * 60 seconds + 17 seconds = 7097 seconds Show more…
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