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  Wikipedia: Speed

Wikipedia: Speed
From Wikipedia, the free encyclopedia.

For alternative meanings of Speed, see Speed (disambiguation).

Speed is the rate of motion expressed as distance moved per unit of time. Speed is a scalar quantity; the equivalent vector quantity is known as velocity.

Units of speed include:

1 m/s = 3.6 km/h
1 mph = 1.609 km/h
1 knot = 1.852 km/h = 0.514 m/s
Mach 1 = about 1200 km/h = about 330 m/s


From Wikipedia, the free encyclopedia. 
Modified by Geona