Using Physics--And Other Factors--to Explain Usain Bolt's Speed
https://www.insidescience.org/news/using-physics-and-other-factors-explain-usain-bolts-speed
Web ResultJul 26, 2013 · His speed peaked around 7 seconds into the race, at over 27 mph. The researchers calculated a maximum power output of about 3.5 horsepower. Of Bolt's total work during the race, 81.58 kilojoules, only 6.36 were "used to achieve motion," they wrote. Air resistance tends to be highest when a runner reaches top …
DA: 9 PA: 36 MOZ Rank: 15 Up or Down: Up