| 0.013 m/s | speed of a garden snail crawling (= 1.3 cm/s)
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| 0.08 m/s | the top speed of a sloth (= 8.0 cm/s)
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| 1 m/s | a typical human walking speed; below a speed of about 2 m/s, it is more efficient to walk than to run, but above that speed, it is more efficient to run
the speed of signals ( action potentials) traveling along axons in the human cortex
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| 28 m/s | a car travelling at 60 miles per hour ( mi/h or informally mph) or 100 kilometres per hour ( km/h); also the speed a cheetahThe Cheetah Acinonyx jubatus is an atypical member of the cat family ( Felidae) that hunts by speed rather than by stealth or pack tactics. It is the fastest of all terrestrial animals and can reach speeds of over 110 k m/ h (70 mph) in short bursts. can maintain
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| 120 m/s | the maximum speed of signals ( action potentials) traveling along myelinated axons in the spinal cord
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| 336 m/s | the speed of soundThe speed of sound varies depending on the medium through which the sound waves pass. It is usually quoted in describing properties of substances (e. see the article on sodium). More commonly the term refers to the speed of sound in air. The speed varies in the Black Rock desert when the land speed recordLand Speed Records 1898-2002 The information below is for self-propelled wheeled vehicles travelling over open ground. As such, it does not include records set by vehicles travelling on rails or motorized sleds over frozen lakes. Additionally, the records was set in 19971997 was a common year starting on Wednesday (see link for calendar), and was designated the International Year of the Reef''. Events January January 3 NBC's Today Show Bryant Gumbel signs off for the last time January 8 Mister Rogers receives a star on t
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| 341 m/s | the current land speed recordLand Speed Records 1898-2002 The information below is for self-propelled wheeled vehicles travelling over open ground. As such, it does not include records set by vehicles travelling on rails or motorized sleds over frozen lakes. Additionally, the records, which was was set by ThrustSSCThrustSSC (SuperSonic Car) is a British designed and built jet propelled car designed by Richard Noble and Ron Ayers, which holds the world land speed record. It is powered by two afterburning Rolls-Royce Spey engines, as used in British variants of the F in 1997. This was supersonic (Mach 1.016) in the Black Rock desert at the time, but might not have been supersonic in other places.
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| 343 m/s | the approximate speed of sound under standard conditions, which varies according to air temperature
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| 559 m/s | the average speed of Concorde's record Atlantic crossing ( 1996)
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| 103 m/s | the speed of a typical rifle bullet
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| 1400 m/s | the speed of the Space Shuttle when the solid rocket boosters separate.
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| 8000 m/s | the speed of the Space Shuttle at main engine shutdown (just before it enters orbit).
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| 3 × 108 m/s | approximately the speed of light
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