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SI, and hence the use of "km/h" (or "km h −1 " or "km·h −1 ") has now been adopted around the world in many areas related to health and safety [36] and in metrology [37] in addition to the SI unit metres per second ("m/s", "m s −1 " or "m·s −1 "). SI is also the preferred system of measure in academia and in education.
default conversion combinations SI: metre per second: m/s m/s US spelling: meter per second: 1.0 m/s (3.3 ft/s) m/s ft/s (m/s foot/s) non-SI metric: kilometre per hour: km/h km/h US spelling: kilometer per hour: 1.0 km/h (0.62 mph) km/h mph; Imperial & US customary: mile per hour: mph mph 1.0 mph (1.6 km/h) mph km/h; mile per second: mi/s mi/s ...
Conversions between units in the metric system are defined by their prefixes (for example, 1 kilogram = 1000 grams, 1 milligram = 0.001 grams) and are thus not listed in this article. Exceptions are made if the unit is commonly known by another name (for example, 1 micron = 10 −6 metre).
Miles per hour (mph, m.p.h., MPH, or mi/h) is a British imperial and United States customary unit of speed expressing the number of miles travelled in one hour. It is used in the United Kingdom , the United States , and a number of smaller countries, most of which are UK or US territories, or have close historical ties with the UK or US.
Expansion rate between 2 points in free space 1 m apart under Hubble's law. [1] ... 1 km/h. 0.44704: 1.609344: 1: 1. ... 320 km/h or 200 mph is a parameter sometimes ...
Test: 420 km/h (261 mph) Design: 400 km/h (249 mph) Continuous operation: 400 km/h (249 mph) Current operation: 350 km/h (217 mph) 556: 10 business, 28 first and 518 standard 576: 10 business, 28 first and 538 standard 4M4T 10.14 MW (13,598 hp) August 15, 2016 CR400BF–C 576: 10 business, 28 first and 538 standard
As part of the China Standardized EMU, the CR400AF is designed to operate at a cruise speed of 350 km/h (217 mph) and a maximum speed of 420 km/h (261 mph) in commercial service. Development on the project started in 2012, and the design plan was finished in September 2014. The first EMU rolled off the production line on 30 June 2015. [2]
Koenigsegg states it is capable of accelerating to 100 km/h (62 mph) from a stand still in 2.8 seconds, 200 km/h (124 mph) in 6.6 seconds, 300 km/h (186 mph) in 10.9 seconds and attaining a speed of 400 km/h (249 mph) in 20 seconds. Koenigsegg also claims that the acceleration from 150–250 km/h (93–155 mph) requires 3.9 seconds. [1]