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Metre per second (U.S. spelling
American English

PhonologyIn many ways, compared to English language in England, North American English is conservative in its phonology. Some distinctive accents can be found on the East Coast of the United States , partly because these areas were in contact with England, and imitated prestigious varieties of English English at a time when those varieties we...
: meter per second) is an SI derived unit
SI derived unit

SI derived units are part of the SI system of measurement Units of measurements and are derived from the seven SI base units.Note that while the names of all SI units are in lowercase, the symbols of units named after people are written with an initial capital letter ....
 of both speed
Speed

Speed is the rate of Motion , or equivalently the rate of change of distance.Speed is a Scalar quantity with dimensions length/time; the equivalent Vector quantity to speed is velocity....
 (scalar
Scalar (physics)

In physics, a scalar is a simple physical quantity that is not changed by coordinate system rotations or translations , or by Lorentz transformations or space-time translations ....
) and velocity
Velocity

In physics, velocity is defined as the Derivative of Position vector. It is a vector physical quantity; both speed and direction are required to define it....
 (vector quantity which specifies both magnitude and a specific direction), defined by distance
Distance

Distance is a numerical description of how far apart objects are. In physics or everyday discussion, distance may refer to a physical length, a period of time, or an estimation based on other criteria ....
 in metre
Metre

The metre or meter is a Unit of measurement of length. It is the SI base unit of length in the metric system and in the International System of Units , used around the world for general and scientific purposes....
s divided by time
Time

Time is a component of the measurement used to sequence events, to compare the durations of events and the intervals between them, and to quantify the motions of objects....
 in second
Second

The second , sometimes abbreviated sec., is the name of a units of measurement of time, and is the International System of Units SI base unit of time....
s.

This is the main unit of speed.

The official SI
Si

Si, si, or SI may refer to :...
 symbolic abbreviation
Abbreviation

An abbreviation is a shortened form of a word or phrase. Usually, but not always, it consists of a letter or group of letters taken from the word or phrase....
 is m·s-1, or equivalently, m/s; although the abbreviation mps is sometimes used colloquially, but is incorrect according to the BIPM
International Bureau of Weights and Measures

File:Metric seal.svgThe International Bureau of Weights and Measures , is an international standards organization, one of three such organizations established to maintain the International System of Units under the terms of the Metre Convention ....
.






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Metre per second (U.S. spelling
American English

PhonologyIn many ways, compared to English language in England, North American English is conservative in its phonology. Some distinctive accents can be found on the East Coast of the United States , partly because these areas were in contact with England, and imitated prestigious varieties of English English at a time when those varieties we...
: meter per second) is an SI derived unit
SI derived unit

SI derived units are part of the SI system of measurement Units of measurements and are derived from the seven SI base units.Note that while the names of all SI units are in lowercase, the symbols of units named after people are written with an initial capital letter ....
 of both speed
Speed

Speed is the rate of Motion , or equivalently the rate of change of distance.Speed is a Scalar quantity with dimensions length/time; the equivalent Vector quantity to speed is velocity....
 (scalar
Scalar (physics)

In physics, a scalar is a simple physical quantity that is not changed by coordinate system rotations or translations , or by Lorentz transformations or space-time translations ....
) and velocity
Velocity

In physics, velocity is defined as the Derivative of Position vector. It is a vector physical quantity; both speed and direction are required to define it....
 (vector quantity which specifies both magnitude and a specific direction), defined by distance
Distance

Distance is a numerical description of how far apart objects are. In physics or everyday discussion, distance may refer to a physical length, a period of time, or an estimation based on other criteria ....
 in metre
Metre

The metre or meter is a Unit of measurement of length. It is the SI base unit of length in the metric system and in the International System of Units , used around the world for general and scientific purposes....
s divided by time
Time

Time is a component of the measurement used to sequence events, to compare the durations of events and the intervals between them, and to quantify the motions of objects....
 in second
Second

The second , sometimes abbreviated sec., is the name of a units of measurement of time, and is the International System of Units SI base unit of time....
s.

This is the main unit of speed.

The official SI
Si

Si, si, or SI may refer to :...
 symbolic abbreviation
Abbreviation

An abbreviation is a shortened form of a word or phrase. Usually, but not always, it consists of a letter or group of letters taken from the word or phrase....
 is m·s-1, or equivalently, m/s; although the abbreviation mps is sometimes used colloquially, but is incorrect according to the BIPM
International Bureau of Weights and Measures

File:Metric seal.svgThe International Bureau of Weights and Measures , is an international standards organization, one of three such organizations established to maintain the International System of Units under the terms of the Metre Convention ....
. Where kilometres per second are several orders of magnitude too slow to be convenient, such as in astronomical
Astronomy

Astronomy is the science of Astronomical object and Phenomenon that originate outside the Earth's atmosphere . It is concerned with the evolution, physics, chemistry, meteorology, and motion of celestial objects, as well as the physical cosmology....
 measurements, velocities may be given in terms of metres per second, where 1 km/s is equivalent to 103 metres per second.

One metre per second is roughly the speed of an average person walking.

Conversions

1 meter per second is equivalent to:
= 3.6 km·h-1 (exactly)
˜ 3.2808 feet per second
Feet per second

The foot per second is a physical unit of both speed and velocity . It expresses the distance in Foot Abbreviations include ft/s, ft/sec and fps, and the rarely used scientific notation ft s-1....
 (approximately)
˜ 2.2369 miles per hour
Miles per hour

The mile per hour is a physical unit of speed, expressing the number of Mile covered per hour.It is currently the Unit of measurement used for speed limits, and speeds, on roads in the United Kingdom and United States....
 (approximately)


1 foot per second
Feet per second

The foot per second is a physical unit of both speed and velocity . It expresses the distance in Foot Abbreviations include ft/s, ft/sec and fps, and the rarely used scientific notation ft s-1....
 = 0.3048 m·s-1 (exactly)

1 mile per hour ˜ 0.4471 m·s-1 (approximately)

1 km·h-1 ˜ 0.2778 m·s-1 (approximately)

1 kilometre per second is equivalent to:
˜ 0.6213 miles per second (approximately)
˜ 2237 miles per hour
Miles per hour

The mile per hour is a physical unit of speed, expressing the number of Mile covered per hour.It is currently the Unit of measurement used for speed limits, and speeds, on roads in the United Kingdom and United States....
 (approximate)


Relation to other measures

Although m·s-1 is an SI derived unit, it could be viewed as more fundamental than the metre, since the latter is derived from the speed of light
Speed of light

The speed of light in an free space is an important physical constant usually written as c, with a value of 299,792,458 metres per second....
 in a vacuum, which is defined as exactly 299 792 458 m·s-1 by the BIPM
International Bureau of Weights and Measures

File:Metric seal.svgThe International Bureau of Weights and Measures , is an international standards organization, one of three such organizations established to maintain the International System of Units under the terms of the Metre Convention ....
. It follows that one metre is the length of the path travelled by light in a vacuum during a time interval of 1/299 792 458 of one second.

See also

  • kilometre per hour
  • Orders of magnitude (speed)
    Orders of magnitude (speed)

    To help compare different orders of magnitude, the following list describes various speed levels between 1.3 metre per second and 3 m/s....


External links