World's Fastest....?

Question

What's the world's fastest speed a human can achieve by RUNNING. if you give me by m/s or mi/hr would be appreciated.

thanks

Answer 1

from this i would conclude about 10 m/s

BREAKING IT DOWN
Maurice Greene might have the 100-metre world record, but there is an argument to be made that 200-metre specialist Michael Johnson has run faster. A comparison of four notable performances:
Michael Johnson, 1996 Olympics200 metres in 19.32 seconds or 10.352 metres per second.
Maurice Greene, 1999 Athens Grand Prix100 metres in 9.79 seconds or 10.215 metres per second.
Johnson, 1996 Olympic trials200 metres in 19.66 seconds or 10.173 metres per second.
Donovan Bailey, 1996 Olympics100 metres in 9.84 seconds or 10.163 metres per second.

Answer 2

10.352 m/s Michael Johnson
His 19.32s for 200m gives the highest AVERAGE speed for any of the sprint distances and in this particular world record setting race (1st August 1996) he exceeded 25 mph (40kmh) peak speed. He covered the second 100m in only 9.2 seconds.

Top Speed Ever Achieved Was by Asafa Powell @ 48km/hr..equivalent to 13.333 m/s or 29.8258 mph

Answer 3

Justin Gatlin, one of the worlds fastest sprinters, can supposedly peak at around 27mph.

This is obviously only in short intervals though.

Answer 4

10.32 m/s