Puas yog kev sib txhuam quab yuam conservative los yog nonconservative?
Puas yog kev sib txhuam quab yuam conservative los yog nonconservative?

Video: Puas yog kev sib txhuam quab yuam conservative los yog nonconservative?

Video: Puas yog kev sib txhuam quab yuam conservative los yog nonconservative?
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Kev quab yuam uas tsis khaws lub zog yog hu ua nonconservative los yog dissipative zog . Kev sib txhuam yog a lub zog tsis ruaj khov , thiab muaj lwm yam. Ib qho kev sib txhuam - hom zog , zoo li huab cua tsis kam, yog a lub zog tsis ruaj khov . Lub zog uas nws tshem tawm ntawm lub cev tsis muaj nyob rau hauv lub system rau kinetic zog.

Tsis tas li ntawd nug, dab tsi yog conservative thiab tsis conservative rog?

Definition: Txoj hauj lwm a conservative zog ua ntawm ib qho khoom txav los ntawm A mus rau B yog txoj kev ywj pheej - nws tsuas yog nyob ntawm qhov kawg ntawm cov lus tsa suab. Rau ib tsis yog - kev saib xyuas (los yog dissipative) zog , txoj haujlwm ua tiav los ntawm A mus rau B nyob ntawm txoj kev coj mus. Piv txwv li: kev sib txhuam thiab cua tsis kam.

Ib tug kuj yuav nug, dab tsi yog lub ntsiab lus ntawm lub cev tsis muaj zog? Tsis yog - conservative rog yog dissipative zog xws li kev sib txhuam lossis cua tsis kam. Cov no zog coj lub zog tawm ntawm lub cev thaum lub cev ua haujlwm, lub zog uas koj tsis tuaj yeem rov qab los. Cov no zog yog txoj kev nyob; yog li ntawd nws tseem ceeb rau qhov khoom pib thiab nres.

Hais txog qhov no, puas yog siv dag zog tsis muaj kev ntseeg?

Yog txoj haujlwm ua los ntawm a zog nyob ntawm tsis tau tsuas yog nyob rau hauv thawj thiab zaum kawg txoj hauj lwm, tab sis kuj nyob rau hauv txoj kev ntawm lawv, lub zog npe a tsis yog - conservative zog . Piv txwv: kev sib txhuam zog , Nyuaj, ib txwm zog , thiab siv zog los ntawm ib tug neeg.

Yuav ua li cas yog cov piv txwv ntawm conservative rog?

Gravitational quab yuam yog ib qho piv txwv ntawm lub zog txuag, thaum kev sib txhuam quab yuam yog ib qho piv txwv ntawm lub zog tsis ruaj khov. Lwm cov piv txwv ntawm kev txuag hluav taws xob yog: quab yuam hauv lub caij nplooj ntoos hlav elastic, lub zog hluav taws xob ntawm ob lub hluav taws xob hluav taws xob, thiab lub zog sib nqus ntawm ob tus ncej sib nqus.

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