Is acceleration absolute and velocity not?

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Discussion Overview

The discussion centers around the nature of acceleration and velocity, specifically whether acceleration can be considered absolute while velocity is not. Participants explore this concept through various frameworks, including Newtonian physics and relativity, and consider implications for different reference frames.

Discussion Character

  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants argue that both velocity and acceleration are relative quantities that depend on the chosen reference frame.
  • Others propose that acceleration can be measured absolutely, particularly in low-speed scenarios, using simple experiments like a pendulum.
  • A few participants suggest that in Newtonian physics, acceleration is treated as absolute, while in General Relativity, it becomes relative due to the equivalence of all reference frames.
  • There is a contention regarding the interpretation of acceleration in Special Relativity, with some asserting that it remains absolute while others argue that its magnitude can vary between different inertial frames.
  • Participants discuss the distinction between angular velocity and linear velocity, questioning why one might be considered absolute while the other is not.
  • Some contributions highlight the importance of invariant quantities in relativity, suggesting a need to clarify the terminology used in the discussion.
  • Concerns are raised about the depth of understanding regarding concepts like momentum, angular momentum, and the implications of spacetime curvature in General Relativity.

Areas of Agreement / Disagreement

The discussion remains unresolved, with multiple competing views on the nature of acceleration and velocity. Participants express differing opinions on whether acceleration can be considered absolute or relative, and the conversation reflects a lack of consensus on the definitions and implications of these concepts.

Contextual Notes

Participants note that the definitions of absolute and relative may vary depending on the theoretical framework being discussed, leading to confusion and disagreement. The conversation also touches on the need for clarity regarding the terms "absolute" and "invariant" in the context of relativity.

  • #61
DaleSpam said:
Not unless they eventually lead to testable predictions.

you are a new Francis Bacon :-p
 

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