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How fast is 630.2 yards per second?

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It's about thirty times as fast as a Gazelle.
In other words, the speed of a Gazelle is 0.03 times 630.2 yards per second.
(for Thomson's Gazelle, a.k.a. Eudorcas thomsoni, a.k.a. "Tommie", a.k.a. "Tommy")
A Thomson's gazelle can reach speeds of up to 20 yards per second. The gazelle's speed doesn't match that of its chief predator, the cheetah, but a gazelle's endurance usually ensures an escape in distances greater than 500 m (0.3 mi).
It's about thirty times as fast as a Hare.
In other words, the speed of a Hare is 0.03 times 630.2 yards per second.
(for European Brown Hare, a.k.a. Brown Hare, a.k.a. Lepus europaeus, a.k.a. Brown Hare)
The European Hare can run at speeds of up to 20 yards per second. While speed is a factor in their escapes, hares evade their chief predators — wolves, foxes, and golden eagles — by fleeing in a zigzag pattern.
It's about thirty times as fast as Secretariat.
In other words, 630.2 yards per second is 34.3 times the speed of Secretariat, and the speed of Secretariat is 0.0292 times that amount.
(at Belmont Stakes, 1973)
Setting a record finish, Secretariat ran the Belmont Stakes — a 12 furlong race length — in 2:24, for an average speed of 18.3 yards per second in 1973. His margin of victory in the race, also a record-setter, was 31 lengths.
It's about 55 times as fast as Michael Johnson.
In other words, 630.2 yards per second is 55.68 times the speed of Michael Johnson, and the speed of Michael Johnson is 0.01796 times that amount.
(a.k.a. Michael Duane Johnson) (sprinter; 1967-) (at the Atlanta Olympics, 1996)
Setting a record that stood for 12 years, Michael Johnson ran a 200 m in 0:19.32 for an average speed of 11.32 yards per second at the 1996 Olympics. Johnson was nicknamed "the Man with the Golden shoes" in recognition of the custom footwear worn during these races — a pair of Nikes with a left size of 10.5 and a right size of 11.
It's about 55 times as fast as Usain Bolt.
In other words, 630.2 yards per second is 55.9 times the speed of Usain Bolt, and the speed of Usain Bolt is 0.0179 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 11.3 yards 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 60 times as fast as Flo-Jo.
In other words, 630.2 yards per second is 61.49 times the speed of Flo-Jo, and the speed of Flo-Jo is 0.01626 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 10.25 yards 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 one-seventieth as fast as a Meteor.
In other words, the speed of a Meteor is 71 times 630.2 yards per second.
(formally Meteoroid or meteorite, depending on the context; a.k.a. "shooting star", a.k.a. "falling star")
Small meteoroids enter the Earth's atmosphere at speeds between 12,000 yards per second and 79,000 yards per second, depending on their size. The fireball effect, known as ablation, ceases once the atmosphere has slowed the meteoroid to a velocity of about 3,000 yards per second.