Qhov txawv ntawm Kev nrawm nrawm thiab qhov nruab nrab nrawm

2024 Tus sau: Alex Aldridge | [email protected]. Kawg hloov kho: 2023-12-17 13:40

Acceleration vs Average acceleration

Acceleration yog ib qho tseem ceeb heev thiab ib lub tswv yim zoo sib tham hauv physics thiab mechanics. Acceleration thiab nruab nrab acceleration yog ob lub ntsiab lus uas zoo sib xws rau txhua txoj hauv kev. Txawm li cas los xij, ob lub tswv yim no muaj ntau qhov sib txawv. Nws yog ib qho tseem ceeb kom muaj kev nkag siab zoo hauv cov ntsiab lus ntawm acceleration thiab nruab nrab acceleration nyob rau hauv thiaj li yuav ua tau zoo nyob rau hauv lub teb xws li physics, mechanics thiab lwm yam teb uas siv cov ntsiab lus no. Hauv tsab xov xwm no, peb yuav tham txog dab tsi acceleration thiab nruab nrab acceleration yog, lawv daim ntawv thov, qhov zoo sib xws thiab thaum kawg qhov sib txawv ntawm acceleration thiab nruab nrab acceleration.

Acceleration

Acceleration txhais tau tias yog tus nqi hloov pauv ntawm lub cev. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias acceleration ib txwm yuav tsum muaj lub zog ua haujlwm ntawm qhov khoom. Qhov no tau piav qhia hauv Newton txoj cai thib ob ntawm kev txav chaw. Qhov thib ob txoj cai lij choj hais tias lub net quab yuam F ntawm lub cev yog sib npaug rau tus nqi ntawm kev hloov ntawm linear momentum ntawm lub cev. Txij li thaum lub zog linear yog muab los ntawm cov khoom ntawm huab hwm coj thiab kev tshaj tawm ntawm lub cev thiab qhov loj tsis hloov ntawm qhov tsis sib haum xeeb, lub zog sib npaug rau qhov loj lub sij hawm tus nqi hloov ntawm qhov nrawm uas yog qhov nrawm. Yuav muaj ntau yam ua rau lub zog no. Electromagnetic quab yuam, gravitational force thiab mechanical force yog npe rau ob peb tug. Lub acceleration vim ib tug loj nyob ze yog hu ua lub gravitational acceleration. Nws yuav tsum raug pom tias yog ib yam khoom tsis raug rau lub net quab yuam cov khoom yuav tsis hloov qhov nrawm ntawm nws tus kheej txawm tias nws txav los yog nyob ruaj khov. Nco ntsoov tias kev txav ntawm cov khoom tsis tas yuav tsum muaj lub zog tab sis qhov nrawm ib txwm xav tau lub zog. Acceleration muaj qhov ntev [L] [T]^-2 Lub S. I. chav tsev ntawm acceleration yog meters ib ob ib ob (ms^-2).

Average Acceleration

Av acceleration yog qhov kev nrawm nrawm ntawm ob lub xeev ntawm kev txav. Qhov nruab nrab acceleration yog yooj yim xam los ntawm qhov piv ntawm qhov sib txawv ntawm kev tshaj tawm mus rau lub sij hawm coj. This can be denoted as a formula by A_avg=(V₂-V₁)/ (t ₂-t₁) qhov twg V₂ yog qhov kawg tshaj tawm, V₁ yog qhov pib tshaj tawm, thiab t₂-t₁ yog lub sijhawm sib txuas ntawm ob lub nrawm. Lub acceleration ntawm cov khoom yuav siab tshaj qhov nruab nrab acceleration los yog qis dua nws nyob nruab nrab ntawm ob lub xeev. Lub zog nruab nrab tuaj yeem muab tau los ntawm qhov nruab nrab acceleration (F=ma). Lub vector kev taw qhia ntawm qhov nruab nrab acceleration tsuas yog nyob ntawm qhov kawg thiab pib tshaj tawm. Qhov nruab nrab acceleration muaj qhov ntev [L] [T]^-2SI unit ntawm qhov nruab nrab acceleration yog meters ib ob ib ob (ms^{-2). Qhov nruab nrab acceleration yog ntsuas tau yooj yim thiab yog li ntawd, dav siv hauv kev sim.}

Qhov sib txawv ntawm Nruab Nrab Acceleration thiab Acceleration yog dab tsi?

• Kev nrawm yog txhais tau tias yog ib qho khoom tam sim ntawd qhov nruab nrab acceleration yog ib qho cuab yeej ntawm kev txav mus rau ib ntus.

• Acceleration nyob ntawm lub instantaneous net quab yuam ua rau cov khoom. Qhov nruab nrab acceleration yog nyob ntawm qhov nruab nrab net quab yuam ua rau lub system nrog rau cov kev hloov loj nyob rau hauv lub sij hawm.

• Kev nrawm nrawm feem ntau ntsuas los ntawm kev ntsuas qhov nruab nrab nrawm ntawm ob lub ntsiab lus ze heev.