Talk:Kinematics

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Comments:

1 Sundry comments
2 History and Explaination
3 Relativistic kinematics?
4 Specific notation confusion

[edit] Sundry comments

This article contains lots of nonstandard notation. This is potentially confusing. More standard notation can be found in numerous physics texts including:

Halliday&Resnick, Johnson&Cutnell, Serway

This page contains several statements at the end about angular "position" and angular velocity that are non-general; that is, they only apply to a two dimensional or planar problem. MarcusMaximus 09:20, 25 August 2006 (UTC)

I added the section Algebraic equations to the Fundamental Equations heading. Give me your thoughts - I like that notation a bit better, it's more common, and a bit easier to understand. It may not reconcile with the vector notation used, but it is algebra. --Democritus the Minor 08:10, 6 September 2006 (UTC)

I notice that the change in the algebraic equations for linear kinematics are not notated consistently with the angular portion. I prefer describing linear kinematics using v_i and v_f instead of v and u because there is no obvious relationship between v and u in the equations, while the relationship between the velocities is vital in understanding the equations. Additionally, if initial and final angular displacements are used in describing angular kinematics, it seems reasonable to be consistent and use initial and final linear displacement to describe linear kinematics instead of using Δ. I believe it may be sufficient to simply notate the linear equations in both ways, which is what I have done.Tgilro01 20:59, 22 March 2007 (UTC)

[edit] History and Explaination

While a purely mathematical treatment is nice, we should consider some plain language description of what each term does. We also need the history of kinematics, it's major developers, and the problems they were interested in solving.

Dhskep September 24, 2006 21:22 UTC

[edit] Relativistic kinematics?

Can anyone direct me to an article on relativistic kinematics (if one exists)? If there's no such article yet, it should probably be created either separately or as a subsection of kinematics. HEL 03:09, 5 November 2006 (UTC)

[edit] Specific notation confusion

I have long understood in Physics and Maths that difference (e.g. the difference between two speeds) is notated with a Greek 'Delta' Δ symbol.
In this article, it seems the notation is 'd' for difference. Whilst this makes sense, to people who have learnt it with the delta it is confusing.
Is this simply an Australian notation? Can we look into this some how? - Eps0n 05:24, 18 February 2007 (UTC)

Where do you see d being used for the difference? Δ is used for difference in the section "Algebraic equations." Elsewhere d is used only for the differential, as far as I can see. HEL 16:23, 18 February 2007 (UTC)

I agree, I have only found d to be used for the differential, which is its standard usage and is not the same as the difference described by delta. See [[1]]

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