Video: Ib qho piv txwv ntawm Newton's Second Law of Motion yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
4. Newton's 2nd Law ? Cov thib ob txoj cai ntawm kev txav hais tias acceleration yog tsim thaum ib tug unbalanced quab yuam ua rau ib yam khoom (mass). Piv txwv ntawm Newton's 2nd Law ? Yog tias koj siv tib lub zog los thawb lub tsheb thiab thawb lub tsheb, lub tsheb yuav muaj kev nrawm dua li lub tsheb thauj khoom, vim tias lub tsheb muaj qhov hnyav dua.
Tsis tas li ntawd, cov piv txwv ntawm Newton txoj cai ntawm kev txav yog dab tsi?
Rau txhua lub zog uas muaj, ib qho ntawm qhov sib npaug ntawm qhov sib npaug thiab qhov sib txawv ntawm qhov kev coj ua tawm tsam nws: kev ua thiab cov tshuaj tiv thaiv. Rau piv txwv , ib lub pob pov rau hauv av exerts downward quab yuam; nyob rau hauv teb, av exerts ib tug upward quab yuam ntawm lub pob thiab nws bounces.
Qhov thib ob, koj piav qhia Newton txoj cai thib ob ntawm kev txav li cas? Newton txoj cai thib ob Cov lus tsa suab tuaj yeem raug teev raws li hauv qab no: Lub acceleration ntawm ib yam khoom raws li tsim los ntawm ib tug net quab yuam yog ncaj qha proportional rau qhov loj ntawm lub net quab yuam, nyob rau hauv tib txoj kev raws li lub net force, thiab inversely proportional rau qhov loj ntawm cov khoom.
Ntxiv mus, qhov piv txwv zoo tshaj ntawm Newton thib ob txoj cai ntawm kev txav yog dab tsi?
Newton's Second Law of Motion hais tias acceleration (nce ceev) tshwm sim thaum lub zog ua rau ib tug loj (khoom). Caij koj lub tsheb kauj vab yog ua piv txwv zoo ntawm no txoj cai motion tom haujlwm. Koj lub tsheb kauj vab yog qhov loj. Koj ob txhais ceg cov leeg thawb thawb rau ntawm lub pedals ntawm koj lub tsheb kauj vab yog lub zog.
Newton txoj cai thib 1 yog dab tsi?
Newton Thawj Txoj Cai hais tias ib yam khoom yuav nyob twj ywm nyob rau hauv so los yog nyob rau hauv uniform kev taw qhia nyob rau hauv ib txoj kab ncaj nraim tshwj tsis yog ua raws li lub zog sab nraud. Nws yuav pom tau tias yog ib nqe lus hais txog inertia, cov khoom yuav nyob twj ywm hauv lawv lub xeev kev taw qhia tshwj tsis yog tias lub zog ua kom hloov pauv kev taw qhia.
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