Clarifying the Jerk Four Vector: Definition & Form

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Discussion Overview

The discussion centers around the concept of the jerk four-vector, specifically its definition and form. Participants explore the theoretical implications of this concept within the framework of four-dimensional physics, particularly in relation to four-acceleration.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant inquires about the definition and form of the jerk four-vector, suggesting it is a rate of change of four-acceleration.
  • Another participant expresses unfamiliarity with the term "jerk four-vector," proposing that differentiating four-acceleration with respect to proper time would yield a quantity that could be termed four-jerk.
  • Links to external resources are provided by participants, which may contain additional information on the topic, including references to related concepts like snap, crackle, and pop in the context of four-vectors.

Areas of Agreement / Disagreement

There is no consensus on the definition or existence of the jerk four-vector, with participants presenting differing views and interpretations regarding its formulation and relevance.

Contextual Notes

Participants have not established a clear definition or framework for the jerk four-vector, and assumptions regarding its relationship to four-acceleration remain unexamined. The discussion also lacks resolution on the terminology used.

off-diagonal
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"jerk" 4-vector??

What is jerk four vector? and what is its definition or a form? as far as I know it is a rate of change of 4-acceleration.

Could anyone clarify me?
 
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I have never seen a jerk four-vector, but if you took the four-acceleration and differentiated wrt proper time then you would have something that is manifestly a four-vector. I would probably call that the four-jerk.
 

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