What is the top speed of a running sprinter?

23.4 km/h (14.5 mph)

43.9 km/h (27.3 mph)

58.2 km/h (36.1 mph)

67.2 km/h (41.76 mph)

43.9 km/h (27.3 mph) was the top speed of Usain Bolt during setting 100m world record of 9.58s in 2009. He reached the maximum speed in the middle of the distance and kept it to the finish line.

Rajinder Bhutia

Tom Thai

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Usain Bolt could be described as 'running as fast as the wind' during the 100m race. But what kind of wind blows at such speed?