Editing Metre per second squared (section)

{{short description|SI derived unit of acceleration}}
{{EngvarB|date=September 2022}}
{{Infobox unit
| name         = Metre per second squared
| image        = 
| caption      = 
| standard     = [[International System of Units|SI]]
| quantity     = [[acceleration]]
| symbol       = {{sfrac|m|s<sup>2</sup>}}
}}
The '''metre per second squared''' or '''metre per square second''' is the [[Units of measurement|unit]] of [[acceleration]] in the [[International System of Units]] (SI). As a [[SI derived unit|derived unit]], it is composed from the [[SI base unit]]s of length, the [[metre]], and of time, the [[second]]. Its symbol is written in several forms as '''m/s<sup>2</sup>''', '''m·s<sup>−2</sup>''' or '''ms<sup>−2</sup>''', <math>{\tfrac\operatorname{m}{\operatorname{s}^2}}</math>, or less commonly, as '''(m/s)/s'''.<ref>Note that the SI standard does not permit the latter: [http://physics.nist.gov/Pubs/SP330/sp330.pdf NIST Special Publication 330, 2008 Edition: The International System of Units (SI)] {{Webarchive|url=https://web.archive.org/web/20160603215953/http://physics.nist.gov/Pubs/SP330/sp330.pdf |date=2016-06-03 }} p.&nbsp;130 "A solidus must not be used more than once in a given expression without brackets to remove ambiguities."</ref>

As acceleration, the unit is interpreted physically as change in velocity or speed per time interval, i.e. [[metre per second]] per [[second]] and is treated as a vector quantity.