Video: Dab tsi yog ob lub ntsiab lus tseem ceeb rau kev sib npaug?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ntsiab Lus
Muaj ob yam xwm txheej uas yuav tsum tau ntsib rau ib yam khoom nyob rau hauv kev sib npaug . Thawj mob yog tias lub net quab yuam ntawm cov khoom yuav tsum yog xoom rau qhov khoom nyob rau hauv kev sib npaug . Yog hais tias lub zog net yog xoom, ces net force raws li ib qho kev taw qhia yog xoom.
Cov lus nug tseem yog, ob qho xwm txheej ntawm kev sib npaug yog dab tsi?
zoo li qub kev sib npaug : Lub xeev nyob rau hauv uas ib tug system yog ruaj khov thiab so. Kom ua tiav qhov zoo li qub kev sib npaug , ib qho system yuav tsum muaj ob qho tib si tig kev sib npaug (muaj net torque ntawm xoom) thiab translational kev sib npaug (muaj lub zog ntawm xoom). txhais lus kev sib npaug : Ib lub xeev uas lub zog net sib npaug rau xoom.
Ib tug kuj yuav nug, dab tsi yog cov xwm txheej rau rotational equilibrium? Ib yam li kev txhais lus kev sib npaug , ib yam khoom nyob hauv rotational equilibrium thaum cov sum ntawm tag nrho cov sab nraud torques ua rau nws sib npaug zos. Hauv rotational equilibrium , ib yam khoom yuav tsis txav los yog txav ntawm qhov nrawm nrawm. Qhov no yuav tsum txhais tau hais tias cov khoom tau ntsib zero angular acceleration.
Tsis tas li ntawd, qhov sib npaug thiab nws cov xwm txheej yog dab tsi?
Cov xwm txheej ntawm Equilibrium Qhov no txhais tau hais tias cov txiaj ntsig ntawm tag nrho cov zog sab nraud thiab lub sijhawm ua haujlwm ntawm cov khoom no yog xoom. Raws li Newton thawj txoj cai, nyob rau hauv lub kev sib npaug , ib yam khoom uas nyob rau hauv so yuav nyob twj ywm los yog ib yam khoom uas nyob rau hauv kev txav yuav tsis hloov nws ceev.
Dab tsi yog hom kev sib npaug?
Muaj peb hom equilibrium : ruaj khov, tsis ruaj khov, thiab nruab nrab. Cov duab thoob plaws qhov module no qhia txog ntau yam piv txwv.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
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