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Re:Human running speed of 35-40 mph may be biologically poss... by maxerickson on Tuesday December 09, 2014 @06:59AM (#8722265)
This analysis says Usain Bolt expends >90% of his energy on drag:

http://iopscience.iop.org/0143-0807/34/5/1227/article

(That is, yes, you are correct.)

Answering my own question, he took 41 steps when he set the world record.

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