h2. Description
{table:align=right|cellspacing=0|cellpadding=1|border=1|frame=box|width=40%}{tr}{td:align=center|bgcolor=#F2F2F2}{*}Hierarchy of Models* {td}{tr}{tr}{td}
{pagetree:root=Hierarchy of Models}{td}{tr}{table}{excerpt}This model applies to a point particle subject to an external force that is either parallel or antiparallel to the particle's initial velocity.  {excerpt}

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h2. Assumptions and Limitations


h4. Prior Models

* Link to model pages that should be learned before this model.

h4. Vocabulary

* [frame of reference]
* [position]
* [velocity]
* [acceleration]

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h2. Model Specification


h4. System Schema

*Internal Constituents:*

*External Agents:* e.g. earth (gravity), surface (friction)

h4. Descriptors

*Object Variables:* e.g. m, l

*State Variables:* e.g. v, x, t

*Interaction Variables:* e.g. F, a

h4. Laws of Interaction

e.g. F = \-G mm/r^2

h4. Laws of Change

Example:
{latex}\begin{large}$v_{\rm f} = v_{\rm i} + a (t_{\rm f} - t_{\rm i})$\end{large}{latex}\\
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h2. Relevant Examples

Replace search terms in the macro with relevant ones.
{contentbylabel:1d_motion,constant_acceleration,example_problem|showSpace=false|showLabels=false|maxResults=50}

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{search-box}
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