[Model Hierarchy]
Description and Assumptions
This model is applicable to a single point particle moving with constant velocity. It is a subclass of the One-Dimensional Motion with Constant Acceleration model defined by the constraint a = 0.
Problem Cues
For pure kinematics problems, the problem will often explicitly state that the velocity is constant, or else some quantitative information will be given (e.g. a linear position versus time plot) that implies the velocity is constant.
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Prerequisite Knowledge
Prior Models
None.
Vocabulary
- [position (one-dimensional)]
- velocity
System
A single point particle (or a system treated as a point particle with position specified by the center of mass).
Interactions
In order for the velocity to be constant, the system must be subject to no net interaction.
Model
Law of Change
\begin
$x = x_
+ v (t - t_
)$\end
Diagrammatic Representations
- Position versus time graph.
Relevant Examples
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RELATE wiki by David E. Pritchard is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License |
