Video: Yuav ua li cas thaum lub tsheb qeeb thiab nrawm hloov?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaum lub tsheb qeeb , qhov ceev txo. Qhov txo qis yog hu ua negative acceleration. Thaum a tsheb hloov kev taw qhia, nws kuj yog accelerating. Nyob rau hauv daim duab mus rau sab xis, sib piv cov kev taw qhia ntawm acceleration rau cov kev taw qhia ntawm lub ceev.
Tib neeg kuj nug, yog siv los piav txog ib yam khoom qeeb vim tias txo qis?
acceleration yog opposite rau cov lus tsa suab, lub ceev ntawm khoom txo. Lub tsheb qeeb qeeb . Ua qeeb tseem hu ua negative acceleration.
Ib yam li ntawd, ua li cas thaum ib yam khoom qeeb? Kev nrawm tshwm sim thaum ib yam khoom qeeb , zoo li thaum nws nrawm. Lub tsheb hauv daim duab 8 yog qeeb qeeb . Thaum lub sij hawm txhua lub sij hawm lub sij hawm, lub tsheb mus rau ib tug me me nyob deb, yog li nws ceev yuav txo. Hauv ob qho piv txwv no, kev nrawm hloov pauv, yog li kev nrawm tau tshwm sim.
Kuj paub, yuav ua li cas rau txoj kab nqes ntawm qhov kev ncua deb piv rau lub sij hawm ntawm ib qho khoom qeeb?
Ib txoj kab nqes ntawm qhov ceev- sij hawm graph sawv cev rau acceleration. Txoj kab nqes hav qhia tau hais tias qhov ceev ntawm qhov khoom hloov. Yog kab qhov chaw siab tshaj downward los ntawm sab laug mus rau sab xis ntawm daim duab, qhov no txhais tau hais tias tus khoom yog qeeb qeeb . Nws acceleration yuav tsis zoo.
Koj tuaj yeem qhia tau li cas yog tias qhov khoom nrawm nrawm lossis qeeb?
Qhov no qhia uas rho tawm ntawm qhov nrawm (piv txwv li, muaj qhov tsis zoo acceleration) tuaj yeem ua rau qee yam ceev ceev . Yog acceleration ntsiab lus nyob rau hauv tib txoj kev raws li qhov tshaj tawm, lub khoom yuav yog ua kom ceev . Thiab yog cov ntsiab lus acceleration nyob rau hauv opposite kev coj ntawm tus tshaj tawm, lub khoom yuav yog qeeb qeeb.
Pom zoo:
Dab tsi yog qhov zoo sib xws thiab qhov sib txawv ntawm qhov nrawm thiab nrawm?
Kev sib piv daim duab piv rau Kev Sib Piv Ceev Ceev Tus Nqi Hloov ntawm qhov kev ncua deb Hloov pauv hloov thaum lub cev rov qab mus rau nws qhov chaw pib Yuav tsis xoom Yuav yog xoom Tsiv khoom Ceev ntawm cov khoom txav tsis tuaj yeem tsis zoo. Kev nrawm ntawm cov khoom txav tuaj yeem yog qhov zoo, tsis zoo lossis xoom
Dab tsi yog qhov txawv ntawm qhov nrawm thiab nrawm nrog piv txwv?
Qhov laj thawj yog yooj yim. Kev nrawm yog lub sij hawm tus nqi ntawm qhov khoom txav mus raws txoj kev, thaum lub nrawm yog tus nqi thiab kev taw qhia ntawm qhov khoom txav. Piv txwv li, 50 km / h (31 mph) piav qhia txog qhov ceev ntawm lub tsheb uas taug kev raws txoj kev, thaum 50 km / teev sab hnub poob piav qhia txog qhov nrawm uas nws tab tom taug kev
Koj qhia li cas yog tias daim duab nrawm nrawm lossis qeeb?
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