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How fast is 630.2 yards per second?

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It's about one-fifteenth as fast as The Space Shuttle.
In other words, 630.2 yards per second is 0.074417 times the speed of The Space Shuttle, and the speed of The Space Shuttle is 13.438 times that amount.
(Orbiter vehicle velocity)
The space shuttle orbits at a speed of 8,468.5 yards per second. During liftoff, the space shuttle accelerates to orbital speed in 8.5 minutes, consuming over 1.59 million kg (3.51 million lbs) of propellant in the process.
It's about fourteen times as fast as a Fastball (baseball).
In other words, the speed of a Fastball (baseball) is 0.071 times 630.2 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).
In other words, the speed of a Curveball (baseball) is 0.059 times 630.2 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.
In other words, the speed of a Hurricane is 0.0575 times 630.2 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 36.1 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 94.2 yards per second.
It's about nineteen times as fast as a Cheetah.
In other words, 630.2 yards per second is 18.78 times the speed of a Cheetah, and the speed of a Cheetah is 0.05325 times that amount.
(Acinonyx jubatus)
The cheetah can reach speeds of up to 33.57 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).
In other words, the speed of a Knuckleball (baseball) is 0.053 times 630.2 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.
In other words, 630.2 yards per second is 28.7 times the speed of a Greyhound, and the speed of a Greyhound is 0.0348 times that amount.
(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.