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| ==Etymology== | | ==Etymology== |
| [[Latin]] acceleratus, past participle of accelerare, from ad- + celer swift | | [[Latin]] acceleratus, past participle of accelerare, from ad- + celer swift |
− | *Date: circa [http://www.wikipedia.org/wiki/16th_Century 1530] | + | *Date: circa [https://www.wikipedia.org/wiki/16th_Century 1530] |
| ==Definitions== | | ==Definitions== |
| *1 : to bring about at an earlier [[time]] <accelerate their departure> | | *1 : to bring about at an earlier [[time]] <accelerate their departure> |
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| *4 a : to enable (a student) to complete a [[course]] in less than usual [[time]] | | *4 a : to enable (a student) to complete a [[course]] in less than usual [[time]] |
| :b : to [[speed]] up (as a [[course]] of [[study]]) | | :b : to [[speed]] up (as a [[course]] of [[study]]) |
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| + | <center>For lessons on the [[topic]] of '''''Acceleration''''', follow [https://nordan.daynal.org/wiki/index.php?title=Category:Acceleration '''''this link'''''].</center> |
| ==Description== | | ==Description== |
| In [[physics]], and more specifically [[kinematics]], '''acceleration''' is the [[change]] in [[velocity]] over time. Because velocity is a [[vector]], it can [[change]] in two ways: a change in [[magnitude]] and/or a change in direction. In one [[dimension]], i.e. a line, acceleration is the [[rate]] at which something [[speed]]s up. However, as a vector [[quantity]], acceleration is also the rate at which direction changes. Acceleration has the dimensions L T −2. In SI units, acceleration is [[measured]] in meters per second squared (m/s2). | | In [[physics]], and more specifically [[kinematics]], '''acceleration''' is the [[change]] in [[velocity]] over time. Because velocity is a [[vector]], it can [[change]] in two ways: a change in [[magnitude]] and/or a change in direction. In one [[dimension]], i.e. a line, acceleration is the [[rate]] at which something [[speed]]s up. However, as a vector [[quantity]], acceleration is also the rate at which direction changes. Acceleration has the dimensions L T −2. In SI units, acceleration is [[measured]] in meters per second squared (m/s2). |
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| [[File:Acceleration.jpg]] | | [[File:Acceleration.jpg]] |
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− | In [http://en.wikipedia.org/wiki/Classical_mechanics classical mechanics], for a [[body]] with constant [[mass]], the acceleration of the body is [[proportional]] to the resultant ([[total]]) [[force]] acting on it ([http://en.wikipedia.org/wiki/Newton%27s_laws_of_motion Newton's second law]) where F is the resultant [[force]] acting on the body, m is the mass of the body, and a is its acceleration.[http://en.wikipedia.org/wiki/Acceleration] | + | In [https://en.wikipedia.org/wiki/Classical_mechanics classical mechanics], for a [[body]] with constant [[mass]], the acceleration of the body is [[proportional]] to the resultant ([[total]]) [[force]] acting on it ([https://en.wikipedia.org/wiki/Newton%27s_laws_of_motion Newton's second law]) where F is the resultant [[force]] acting on the body, m is the mass of the body, and a is its acceleration.[https://en.wikipedia.org/wiki/Acceleration] |
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| [[Category: Physics]] | | [[Category: Physics]] |