Talk:Velocity

message: I got a report to do, and I figured I'd get the info off of Wikipedia, and there is practically no history of velocity, like who thought of it and whatnot. Could someone fix it? —The preceding unsigned comment was added by 69.26.30.35 (talk) 01:01, 14 February 2007 (UTC)
replies: text: is BS  trying to infer that speed is not the same as velocity, where do you think the etymology of the phrase originates from?,  and why is the term for speed in countries such as Spain Velocidad?,  you are trying to change the fundamental definition of the word because there is already a term for "speed" in the Englsh language and this is total BS... Velocity velocidad Velocitas  etc is the EXACT Same as speed irrelevant of changing direction or orientation..  end of 2A00:23C7:3613:8001:7500:B470:B67:378A (talk) 22:06, 30 January 2024 (UTC)
replies: text: It is rather common that some words have several meanings that can be distinguished by context. Similarly, it is rather common that some words have a different meaning in common language and in mathematics or physics. Here the term "velocity" has been distinguished from "speed" because there is no term in common language for "speed in some direction". So, a car running at 100km/h to the North and a car running at 100km/h to the East have the same speed but not the same velocity. This is not an invention of Wikipedia, and Wikipedia cannot change the common usage of physicists. D.Lazard (talk) 09:08, 31 January 2024 (UTC)
replies: text: The origin of the distinction between the velocity vector and speed can be traced back to an article by Tait in the Encyclopedia Britannica at around 1880, when vectors were introduced in physics. The encyclopedia had an impact on the English-speaking world.  Ceinturion (talk) 23:32, 1 February 2024 (UTC)
thread_title:  Why is this article so bare? 

message: It's absolutely absurd that this article doesn't cover common units, abbreviations etc. What kind of reference work has equations without references!!! // FrankB 01:13, 14 August 2008 (UTC)
thread_title:  Absurd!!! 

message: I'm debating whether to put a simpler equation for calculating velocity as an addition to this article: d/t (distance divided by time). What do you think? "It's over 9000!" (talk) 06:10, 16 June 2009 (UTC)
thread_title:  Simpler Equation? 

message: Who put, at the top of this page, a lowercase definition of velocity? And at least figure out the answer. Can someone please revert this change. Thank you.
Bab (talk) 01:53, 4 January 2009 (UTC)
thread_title:  What Happened!? 

message: What exactly is their difference? Aren't they mostly the same? 85.217.35.243 (talk) 20:52, 13 July 2010 (UTC)
thread_title:  Velocity and speed 

message: I don't think this article has been written with a layman in mind. The concept of velocity and how it differs from speed (I would guess this is the primary reason someone would look at this article) is quite simple to explain, but the introduction doesn't do much in the way of explaining. There's a comment above from a school pupil stating that they didn't understand it and who could blame them? If my high school physics teacher had given me an explanation like that I'd have been completely lost. Blankfrackis (talk) 10:04, 1 August 2010 (UTC)
thread_title:  Overly Complex Wording 

message: The article on speed is nice little article, with neat mathematical presentation. Still, it could be somewhat improved, particularly with respect to constant and average speed. Also, the use of the expression "distance travelled" (especially when without "travelled") may be misleading, the "length of the path travelled" would be better. But the main problem is that speed is explained (particularly in the lead) using a more complex notion of velocity.
This should be avoided in the lead, or the two articles should be merged. The velocity article is a mess anyway, and it should be written anew. The only issue is whether speed should be kept as a separate article. Any suggestions?--Ilevanat (talk) 00:42, 16 December 2011 (UTC)
thread_title:  Speed and velocity 

message: After looking through the section about 'Equation of Motion', I decided to rewrite it in order to include a more thorough definition of velocity and average velocity, as well as vector treatment of the constant acceleration equations and some more quantities that depend of velocity. I hope that you think it is slightly better now, but any help in making sure that it is both accurate and not too technical would be good.  — Preceding unsigned comment added by DominicPrice (talk • contribs) 23:03, 5 May 2014 (UTC)
thread_title:  Complete change to 'Equation of Motion' section 

message: Anybody else think that this article could do with a section explaining the importance of the speed of light w.r.t velocity, and the effect of the concept of 'relative velocity'; I wouldn't know where to start or how much depth would be appropriate, but would be happy to help if someone could start this off?
Dominic (Imperial College) (talk) 12:19, 8 May 2014 (UTC)
thread_title:  Add section on Special Relativity? 

message: Someone changed the redirect  to point to the section  instead of simply to the article, which I reverted, because "instantaneous velocity" means the same as "velocity", and pointing the redirect to the section suggests otherwise.  I made some edits in this article to make this clearer (along with unrelated edits).  —Quondum 23:48, 23 May 2015 (UTC)
thread_title:  "Instantaneous velocity" 

message: Substituted at 09:52, 30 April 2016 (UTC)
thread_title: Assessment comment

message: The last formula in ‘Polar coordinates’ uses a different notation for vector length (||r||) than all the formulae above (|r|).  I cannot unify it because I am not allowed to edit this free encyclopedia that anyone can edit. 147.229.99.101 (talk) 10:43, 23 February 2022 (UTC)
replies: text:  See . Thanks having noticed the problem. The article got semi-protected due to persistent vandalism. If you sign up for a username, after a while you will be able to edit such articles. - DVdm (talk) 11:21, 23 February 2022 (UTC)
thread_title:  Notation inconsistency 

message: change "Velocity is the directional speed of a object " to "Velocity is the directional speed of an object" Lodengruen42 (talk) 09:02, 9 November 2022 (UTC)
replies: text: Done. --Mvqr (talk) 11:24, 9 November 2022 (UTC)
thread_title:  Semi-protected edit request on 9 November 2022