The Equations of Rotational Kinematics help

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Homework Help Overview

The discussion revolves around a problem in rotational kinematics, specifically relating the concept of revolutions to linear kinematic quantities. The original poster considers how the total number of revolutions of a fan corresponds to a quantity in linear kinematics.

Discussion Character

  • Conceptual clarification

Approaches and Questions Raised

  • The original poster leans towards velocity as the analogous quantity, reasoning that it relates displacement over time. However, participants question the relevance of time in the context of the problem, leading to a consideration of displacement instead.

Discussion Status

The discussion is exploring the relationship between rotational and linear kinematics, with participants examining the implications of the absence of time in the question. Some guidance is being offered regarding the interpretation of the terms involved.

Contextual Notes

Time is not mentioned in the question, which influences the participants' reasoning about the appropriate analogous quantity.

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Consider a fan that has rotated by a total of 2 complete revolutions from where it started. This quantity (2 revolutions) is analogous to what quantity in linear kinematics?

Position

Displacement

Velocity

Speed

Time





Time


Homework Equations



I am leaning towards velocity since displacement over time is velocity...

The Attempt at a Solution



 
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Is time mentioned at all in the question, aside from the possible answers?
 
no, it is not.
 
Then it's probably not anything to do with time, like velocity or speed.
 
so displacement
 

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