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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]])
<center>For lessons on the [[topic]] of '''''Acceleration''''', follow [http://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).
