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The record is 44.72 km/h (27.78 mph), measured between meter 60 and meter 80 of the 100 meters sprint at the 2009 World Championships in Athletics by Usain Bolt. [4] [5] (Bolt's average speed over the course of this race was 37.578 km/h or 23.35 mph.) [6] Compared to quadrupedal animals, humans are exceptionally capable of endurance, but incapable of great speed. [7]
A successful first run was made from a standing start at idle thrust and gradual acceleration, reaching an estimated top speed of 180 mph. The second run was planned to be a drag start, with thrust built up against the brakes and then released. At around 140 mph though, a rear-wheel bearing seized [notes 3] and the car went sideways, then ...
Women's serves must be recorded at or over 200 km/h (124.3 mph) minimum standard speed. [12] Only one serve per player is recorded here. For example, Andy Roddick has several 225.3 km/h (140 mph) or faster serves on his record but only his personal best of 249 km/h (155 mph) is included. [13]
The line is also used by high-speed commuter services from Kent to the capital, operating at top speeds of 140 mph (225 km/h). Beginning in 2019, construction had been ongoing on a major new purpose-built high-speed rail line, High Speed 2 (HS2) which would link London with major cities in the North and the Midlands at 224 mph (360 km/h) and ...
The InterCity 225 was designed to achieve a peak service speed of 140 mph (225 km/h); during a test run in 1989 on Stoke Bank between Peterborough and Grantham, an InterCity 225 was recorded at a speed of 162 mph (260.7 km/h). [9]
Detroit — A teenager drove nearly 140 miles per hour ... Police say Tague was driving over 100 mph on a residential street where the speed limit was 25 mph. ... She actually gave him a car that ...
The Pendolinos were intended to run at service speeds of up to 140 mph (225 km/h). Railtrack, therefore, embarked on a modernisation of the West Coast Main Line to allow for the faster line speeds. [12] However, the programme ran into serious difficulties.
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