Jump to content

Talk:Lever rule

Page contents not supported in other languages.
From Wikipedia, the free encyclopedia

Alloy is used incorrectly un this document as the lever arm rule also applies to non alloys.73.143.118.18 (talk) 02:45, 4 May 2015 (UTC) NMI[reply]

Why can people not simplify things? Seriously. Use full words, not letters, and give the rule properly, so it can be learned and understood.

Unknown variables

[edit]

L and x is not defined. 77.212.171.42 (talk) 17:33, 22 June 2010 (UTC)[reply]

I don't know what those variables are, however I completely reworked the article. Let me know if something still isn't clear. Wizard191 (talk) 01:14, 23 June 2010 (UTC)[reply]


It would an improvement to make sure that the same variables are used throughout the whole article. I feel like the same quantity is described by more than one variable at the moment. For example, how does W_alpha relate to W_l. A helpful thing to do might be to see which text book explanation is clearest and follow this model. Having said this, I really ought to do it. Hopefully this is a helpful comment none the less. Chogg (talk) 11:45, 26 May 2013 (UTC)[reply]

This article is amazingly poorly written. — Preceding unsigned comment added by 2001:4830:2446:60:3D09:483D:9B30:7864 (talk) 02:29, 15 December 2015 (UTC)[reply]

Bad Derivation

[edit]

There's something wrong with the algebra, or with the description of the variables in the Derivation section. If a = b (mix is 50/50?) then is infinite. Unless c also = b, therefore a = b = c. Can't be.

Shouldn't c = a + b? But instead we have Instead of , shouldn't  ?

FWIW, you can use percentages 0% - 100% as it does, or fractions 0.0 - 1.0 , it's all the same as the 100 factors out. Also if you use a numerical example, as you derive as well as in the description, it might be clear as well as correct. Like say a = 5%, b = 5%, W_TOT = 100kg. Plug those in and see if the derivation makes sense. OsamaBinLogin (talk) 20:35, 7 August 2016 (UTC)[reply]