Template:Short description Template:Redirect Template:Infobox unit The metre per second is the unit of both speed (a scalar quantity) and velocity (a vector quantity, which has direction and magnitude) in the International System of Units (SI), equal to the speed of a body covering a distance of one metre in a time of one second. According to the definition of metre,<ref name="nist-definitions">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Template:Val is exactly <math display="inline">\frac{1}{299792458}</math> of the speed of light.
The SI unit symbols are m/s, m·s−1, m s−1, or Template:Sfrac.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
ConversionsEdit
Template:Val is equivalent to:
- = 3.6 km/h (exactly)<ref>Template:Cite book</ref>
- ≈ 3.2808 feet per second (approximately)<ref>Template:Cite book</ref>
- ≈ 2.2369 miles per hour (approximately)<ref>Template:Cite book</ref>
- ≈ 1.9438 knots (approximately)<ref>Template:Cite book</ref>
1 foot per second = Template:Val (exactly)<ref>Template:Cite book</ref>
1 mile per hour = Template:Val (exactly)<ref>Template:Cite book</ref>
1 km/h = Template:Val (exactly)<ref>Template:Cite book</ref>
Relation to other measuresEdit
The benz, named in honour of Karl Benz, has been proposed as a name for one metre per second.<ref name="Klein2011"/> Although it has seen some support as a practical unit,<ref name="Heijungs2005"/> primarily from German sources,<ref name="Klein2011"/> it was rejected as the SI unit of velocity<ref name="Cardarelli2004"/> and has not seen widespread use or acceptance.<ref name="Dresner1974"/>
The square of metres per second, or square metre per square second, is used as a unit of gravitational potential.
Unicode characterEdit
The "metre per second" symbol is encoded by Unicode at code point Template:Unichar.<ref name="Unicode-U3300">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>