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How fast is 45 miles per second?

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It's about 7,000 times as fast as Usain Bolt
In other words, 45 miles per second is 7,030 times the speed of Usain Bolt, and the speed of Usain Bolt is 0.000142 times that amount.
(at the Beijing Olympics, 2008) (a.k.a. Usain St. Leo Bolt, OJ, C.D.) (sprinter; 1986-)
Setting a world record, Usain Bolt ran a 100 m in 0:09.69 for an average speed of 0.00642 miles per second at the 2008 Olympics. Furthermore, Bolt's margin of record breaking — 0.03 s — is the largest margin of victory in the history of digital measurements.
It's about 7,500 times as fast as Flo-Jo
In other words, 45 miles per second is 7,727 times the speed of Flo-Jo, and the speed of Flo-Jo is 0.0001294 times that amount.
(at the Seoul Olympics, 1998) (a.k.a. Florence Griffith-Joyner, a.k.a. Florence Delorez Griffith) (swimmer; 1959-1998)
Setting a world record in 1988, Flo-Jo ran a 200 m in 0:21.34 for an average speed of 0.005824 miles per second. Known as a 200 m runner, Joyner also set a record time in a 100 m race at in 1987.
It's about 9,500 times as fast as Noah Ngeny
In other words, 45 miles per second is 9,557 times the speed of Noah Ngeny, and the speed of Noah Ngeny is 0.0001046 times that amount.
(in Rieti, Italy; 1999) (sprinter; 1978-)
Setting a world record at the Rieti Grand Prix in 1999, Noah Ngeny ran 1,000 m in 2:11.96 for an average speed of 0.004709 miles per second. According to some reports, Ngeny did not begin running competitively until just three years before setting the record.
It's about 10,000 times as fast as a Bull
In other words, 45 miles per second is 11,000 times the speed of a Bull, and the speed of a Bull is 0.0000910 times that amount.
(for animals involved in the Running of the Bulls, a.k.a. Encierro, San Fermin, Pamplona, Spain) (herd average speed)
The herd of the annual Encierro in Pamplona, Spain runs at an average speed of 0.0041 miles per second. The Encierro is run annually from July 7th through July 14th and involves 42 bulls, 77 oxen, and an estimated 17,000 runners over the course of the event.
It's about 25,000 times as fast as a Crocodile
In other words, the speed of a Crocodile is 0.0000370 times 45 miles per second.
(American Crocodile, Crocodylus acutus) (swimming speed)
An American crocodile can reach speeds in the water of up to 0.0017 miles per second. On land, larger crocodiles can "gallop" when fleeing danger at speeds of up to 0.0035 miles per second.
It's about 35,000 times as fast as Michael Phelps
In other words, 45 miles per second is 37,282 times the speed of Michael Phelps, and the speed of Michael Phelps is 0.0000268230 times that amount.
(at the Beijing Olympics, 2008; 200 m freestyle) (a.k.a. Michael Fred Phelps) (swimmer; 1985-)
Setting a world record, Michael Phelps swam the 200 m freestyle in 1:42.96 for an average speed of 0.001207 miles per second. Phelps would go on to win nine gold medals individually in the 2008 Olympics - more than all but eight of the competing nations.
It's about 55,000 times as fast as Walking Pedestrians (in Manhattan)
In other words, the speed of Walking Pedestrians (in Manhattan) is 0.0000180 times 45 miles per second.
(Manhattan; average speed; 8,978 person-sample)
A 2006 Study by the New York City Department of City Planning found that pedestrians in that city walk at an average rate of 0.00081 miles per second. Pedestrians wearing headphones, the study went on to find, walk at a slightly faster 0.00088 miles per second