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How fast is 630.2 yards per second?

It's about eight times as fast as a Skydiver (headfirst)
The speed of a Skydiver (headfirst) is about 79 yards per second.
(Head-to-Earth orientation or standing, average conditions, terminal velocity)
A head-to-Earth or standing-oriented skydiver's terminal velocity assuming average conditions is about 79 yards per second. In a typical jump from 3,900 m (13,000 ft), a diver in this orientation will be in freefall for 46 seconds.
It's about ten-and-a-half times as fast as a Tornado
The speed of a Tornado is about 60.377780 yards per second.
(EF2) (wind speed range average)
According to the Enhanced Fujita scale implemented by the US National Oceanographic and Atmospheric Administration, a "significant" tornado has an Enhanced Funjita scale classification of EF2 and is characterized by wind gust speeds between 53.777780 yards per second and 66.977780 yards per second. The largest recorded tornado — an F4 event occurring in Nebraska in May, 2004 — was almost 4.02 km (2.5 mi) across.
It's about eleven times as fast as a Skydiver (belly-to-earth)
The speed of a Skydiver (belly-to-earth) is about 58 yards per second.
(Belly-to-Earth orientation, average conditions, terminal velocity)
A belly-to-Earth oriented skydiver's terminal velocity is about 58 yards per second. In a typical jump from 3,900 m (13,000 ft), a diver in this orientation will be in freefall for 60 seconds.
It's about fourteen times as fast as a Fastball (baseball)
The speed of a Fastball (baseball) is about 45 yards per second.
(a.k.a. rising fastball, a.k.a. cross-seam fastball, a.k.a. heater, a.k.a. hummer, a.k.a. smoker; for four-seam grip) (major league average)
The average speed of major league fastball pitch is 46 yards per second. When up against the quickest professional fastball pitchers, a batter may have less than 0.4 seconds to react to a pitched ball.
It's about seventeen times as fast as a Curveball (baseball)
The speed of a Curveball (baseball) is about 37 yards per second.
(a.k.a. hook, a.k.a. hammer, a.k.a. yakker) (major league average)
The average speed of major league curveball pitch is 36 yards per second. In the 1940's, debate over whether there really was a curve in the curveball pitch was settled with the conclusion that the ball does curve; however, an optical illusion caused by the spin of the ball and the batter's perception of motion exaggerates the extent of the curve.
It's about seventeen-and-a-half times as fast as a Hurricane
The speed of a Hurricane is about 36.20 yards per second.
(formally: Topical cyclone; a.k.a. typhoon)
A hurricane is defined by the US National Hurricane Center as a Northern Hemisphere tropical storm having one-minute average wind-speeds of at least 36.10 yards per second. Typhoons Tip (October, 1979) and Keith (October, 1997) and Hurricanes Camille (August, 1969) and Allen (August, 1980) jointly hold the record for highest tropical storm wind speeds at 94.20 yards per second.
It's about nineteen times as fast as a Cheetah
The speed of a Cheetah is about 33.560 yards per second.
(Acinonyx jubatus)
The cheetah can reach speeds of up to 33.570 yards per second in short bursts. From a crouching position, the cheetah can attain these speeds in just 2.25 seconds.
It's about nineteen times as fast as a Knuckleball (baseball)
The speed of a Knuckleball (baseball) is about 33 yards per second.
(a.k.a. knuckler, a.k.a. floater, a.k.a. dancer, a.k.a. butterfly ball) (major league average)
The average speed of major league knuckleball pitch is 33 yards per second. Eddie Cicotte, who was later implicated in the 1919 Black Sox scandal, is credited with developing the pitch ca. 1906.
It's about thirty times as fast as a Greyhound
The speed of a Greyhound is about 22 yards per second.
(a.k.a. English greyhound) (approximate maximum speed)
Greyhounds reach average race speeds of 22 yards per second. Despite their racing prowess, greyhounds are not considered energetic dogs — the typical greyhound race requires the dogs to run for less than 35 seconds.
It's about thirty times as fast as a Gazelle
The speed of a Gazelle is about 20 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
The speed of a Hare is about 20 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
The speed of Secretariat is about 18.40 yards per second.
(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 18.30 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
The speed of Michael Johnson is about 11.320 yards per second.
(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 11.320 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
The speed of Usain Bolt is about 11.30 yards per second.
(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 11.30 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
The speed of Flo-Jo is about 10.250 yards per second.
(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 10.250 yards per second. Known as a 200 m runner, Joyner also set a record time in a 100 m race at in 1987.
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