Description
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Hierarchy of Models
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This model is applicable to a point particle when the external forces are known or needed. It is a subclass of the model [Momentum and Force] defined by the constraint dm/dt = 0.
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Assumptions and Limitations
Prior Models
- Familiarity with [One-Dimensional Motion with Constant Acceleration] is useful.
Vocabulary
Model Specification
System Schema
Internal Constituents: Point particle.
External Agents: External influences must be understood sufficiently to draw a free body diagram for the system.
Descriptors
Object Variables:
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\begin
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[m]\end
.
State Variables: None.
Interaction Variables: Fi,ext (i = 1,2,...,n where n is the number of external forces acting), a.
Laws of Interaction
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[ \sum_
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F_{i,{\rm ext}} = ma ] \end
Laws of Change
None.
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 |
