From: Androcles on 27 Jan 2010 15:26 "Phil Bouchard" <phil(a)fornux.com> wrote in message news:4b6099c1$1(a)news.x-privat.org... > Androcles wrote: >> >> Ok, so PE can be negative. >> Now the rock falls and the PE is converted to KE. >> >> What is the KE of 1/2 m_rock * v^2 when v is negative? > > KE = 1/2 m_rock * v^2 > > KE will always be positive. "Negative PE converts to positive KE." - Phil Bouchard. Illogical idiot alert!
From: PD on 27 Jan 2010 15:34 On Jan 27, 2:26 pm, "Androcles" <Headmas...(a)Hogwarts.physics_s> wrote: > > "Negative PE converts to positive KE." - Phil Bouchard. > Illogical idiot alert! Oh, Androcles, surely you can't be so stupid as to think you've laid an artful trap. Well, maybe for a buffoon like Phil, yes, but if you really believe this is a fundamental problem with the law of conservation of energy, then it's time to get the rust-brush out again. (But you and I know that you're just playing little games for the purposes of heckling.)
From: Androcles on 27 Jan 2010 15:43 "PD" <thedraperfamily(a)gmail.com> wrote in message news:8cbfbdb7-7ba7-4bb1-80af-203ece0fcb9b(a)g1g2000yqi.googlegroups.com... On Jan 27, 2:26 pm, "Androcles" <Headmas...(a)Hogwarts.physics_s> wrote: > > "Negative PE converts to positive KE." - Phil Bouchard. > Illogical idiot alert! Oh, Androcles, surely you can't be so stupid as to think you've laid an artful trap. Well, maybe for a buffoon like Phil, yes, but if you really believe this is a fundamental problem with the law of conservation of energy, then it's time to get the rust-brush out again. (But you and I know that you're just playing little games for the purposes of heckling.) ============================================== "I've lost interest. Foam and blather and waste all the time you want. You're not getting anywhere." -- Phuckwit Duck. news:d23006a4-4a88-4efb-b1f4-12b11539952c(a)c34g2000yqn.googlegroups.com
From: Phil Bouchard on 27 Jan 2010 15:48 Androcles wrote: > > "Negative PE converts to positive KE." - Phil Bouchard. > Illogical idiot alert! There is nothing wrong with that because the total mechanical energy will be conserved. KE will keep increasing but PE will decrease negatively thus canceling each other. "I don't know my own questions." -- Androcles
From: Androcles on 27 Jan 2010 16:14
"Phil Bouchard" <phil(a)fornux.com> wrote in message news:4b60a6b3$1(a)news.x-privat.org... > "I don't know my own questions." -- Androcles Oh look, we are playing Jeopardy! "I don't know." - Phil Bouchard. How did mechanical energy get into the conversation? Illogical idiot alert! |