Interesting debate about whether a footballer can run faster than Usain Bolt
http://www.bbc.co.uk/news/magazine-34884849
“When Usain Bolt broke the 100m world record in 2009, it took him 4.64 seconds to run the first 40m. But it’s been reported that Arsenal defender Hector Bellerin ran the same distance in 4.41 seconds.
Even this is only 8.62 metres per second, less than the record speeds here:
The book
