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  2. 40-yard dash - Wikipedia

    en.wikipedia.org/wiki/40-yard_dash

    The 40-yard dash is a sprint covering 40 yards (36.576 m). ... although now a fast 40-yard dash time is considered important for almost every position.

  3. Mile run world record progression - Wikipedia

    en.wikipedia.org/wiki/Mile_run_world_record...

    During the most recent world record setting race in 1999, Noah Ngeny came in second place to Hicham El Guerrouj with a time of 3:43.40, which continues to be the second fastest mile run in history, beating out the old world record set in 1993 by Noureddine Morceli. [34]

  4. Orders of magnitude (speed) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(speed)

    Typical speed of car (freeway); cheetah—fastest of all terrestrial animals; sailfish—fastest fish; speed of go-fast boat. 40: 140: 90: 1.3 × 10 −7: Typical peak speed of a local service train (or intercity on lower standard tracks). 40.05: 144.17: 89.59: 1.335 × 10 −7: Land speed record for a human powered vehicle. [14] 54: 195: 122 ...

  5. List of vehicle speed records - Wikipedia

    en.wikipedia.org/wiki/List_of_vehicle_speed_records

    Land speed records by surface Category Speed (km/h) Speed (mph) Vehicle Operator Date Certifier Refs On ice: 335.7: 208.6: Audi RS 6: Janne Laitinen 9 Mar 2013

  6. Knot (unit) - Wikipedia

    en.wikipedia.org/wiki/Knot_(unit)

    1 nautical mile per hour (by definition), 1 852.000 metres per hour (exactly), [5] 0.51444 metres per second (approximately), 1.15078 miles per hour (approximately), 20.25372 inches per second (approximately) 1.68781 feet per second (approximately). The length of the internationally agreed nautical mile is 1 852 m.

  7. Rail speed limits in the United States - Wikipedia

    en.wikipedia.org/wiki/Rail_speed_limits_in_the...

    40 mph (64 km/h) 60 mph (97 km/h) BNSF between Spokane and Kettle Falls, Washington; and Canadian National’s Wisconsin Central line between Neenah, Wisconsin and Sault Ste. Marie, Michigan. [9] Class 4 [us 2] 60 mph (97 km/h) 80 mph (129 km/h) Chicago’s Metra; and New England Central’s entire main line. [9] Class 5 [us 3] 80 mph (129 km/h)

  8. Xavier Legette 40 time: How fast was South Carolina WR's 40 ...

    www.aol.com/xavier-legette-40-time-fast...

    Xavier Legette 40 time. Legette ran a 4.39-second official 40-yard dash at the NFL combine on Saturday, which ranks ninth among all receivers. Legette's first attempt was unofficially a 4.47 ...

  9. Speed limits in the United States - Wikipedia

    en.wikipedia.org/wiki/Speed_limits_in_the_United...

    Highway speed limits can range from an urban low of 25 mph (40 km/h) to a rural high of 85 mph (137 km/h). Speed limits are typically posted in increments of five miles per hour (8 km/h). Some states have lower limits for trucks, some also have night and/or minimum speed limits.