Physicists estimate how fast Usain Bolt could have run

[Hortical]

By Lisa Zyga, Physics / Physics
This photo montage shows Usain Bolt’s position relative to the other runners, both in the real race (left Bolt) and Bolt’s projected position (right Bolt, crossing the finish line). Credit: H. K. Eriksen, et al.
Click here to enlarge image


(PhysOrg.com) -- By the record books, Jamaican runner Usain Bolt is the fastest human being on earth, and yet no one knows for sure exactly how fast he really is. At the Beijing 2008 Olympics, on Saturday, August 16th, Bolt broke his own world record (9.72 seconds) with a time of 9.69 seconds in the 100-meter dash. But with 20 meters remaining, the 21-year-old looked around, and, when realizing he had a strong lead, he started celebrating before he crossed the finish line.

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[Time]

9.4 estimate? Is Bolt Man or machine?

By Lisa Zyga, Physics / Physics
This photo montage shows Usain Bolt’s position relative to the other runners, both in the real race (left Bolt) and Bolt’s projected position (right Bolt, crossing the finish line). Credit: H. K. Eriksen, et al.
Click here to enlarge image


(PhysOrg.com) -- By the record books, Jamaican runner Usain Bolt is the fastest human being on earth, and yet no one knows for sure exactly how fast he really is. At the Beijing 2008 Olympics, on Saturday, August 16th, Bolt broke his own world record (9.72 seconds) with a time of 9.69 seconds in the 100-meter dash. But with 20 meters remaining, the 21-year-old looked around, and, when realizing he had a strong lead, he started celebrating before he crossed the finish line.

More

9.4 sounds too fast.