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Video: Thawj qhov xwm txheej ntawm equilibrium yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thawj qhov xwm txheej ntawm Equilibrium
Rau ib yam khoom yuav nyob rau hauv kev sib npaug , nws yuav tsum tau ntsib tsis muaj acceleration. Qhov no txhais tau hais tias ob qho tib si lub zog ntawm lub zog thiab lub zog ntawm qhov khoom yuav tsum yog xoom. Lub zog ua rau nws ntxiv mus rau xoom. Ob lub zog yog ntsug hauv qhov no.
Ib yam li ntawd, cov xwm txheej ntawm equilibrium yog dab tsi?
Ib yam khoom nyob hauv kev sib npaug yog; Lub resultant quab yuam ua rau cov khoom yog xoom. Tus lej ntawm lub sijhawm ua haujlwm ntawm ib qho khoom yuav tsum yog xoom.
Qhov thib ob, thaum thawj thiab thib ob qhov xwm txheej rau kev sib npaug ntawm lub cev tau hais tias nyob hauv? Muaj ob tej yam kev mob ntawm kev sib npaug , thawj yam mob ntawm kev sib npaug thiab mob thib ob ntawm kev sib npaug . Raws li cov Thawj yam mob ntawm kev sib npaug sum of force ua rau a lub cev yog xoom (∑ F = 0), Thaum raws li mob thib ob ntawm kev sib npaug sum ntawm torque ua ntawm a lub cev yog zero (∑ τ = 0).
Hais txog qhov no, qhov xwm txheej thib ob ntawm kev sib npaug yog dab tsi?
Qhov ntawd yog thawj zaug qhov xwm txheej ntawm equilibrium . Tab sis ib yam khoom hauv kev sib npaug kuj tsis tig. Qhov ntawd txhais tau tias cov lej ntawm tag nrho cov kev sib hloov ntawm nws kuj yog xoom. Qhov sum ntawm tag nrho cov torques ntawm ib yam khoom yog kev sib npaug yog zero. Qhov no yog qhov Qhov xwm txheej thib ob ntawm Equilibrium.
Dab tsi yuav tsum tau ua kom tau raws li qhov system kom muaj kev sib npaug?
Rau ib qho khoom nyob hauv kev sib npaug , ob tej yam kev mob yuav tsum txaus siab - ob qho tib si net force thiab net torque yuav tsum muab sib npaug rau xoom. Ib qho piv txwv ntawm ib qho khoom hauv kev sib npaug yog ib tug pas nrig uas yog dawb los tig txog ib lub pob khawm ntawm ib kawg.
Pom zoo:
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