Vim li cas cov duab freebody tseem ceeb?
Vim li cas cov duab freebody tseem ceeb?

Video: Vim li cas cov duab freebody tseem ceeb?

Video: Vim li cas cov duab freebody tseem ceeb?
Video: Vim li cas ๐’๐ฎ๐š๐ฏ ๐œ๐จ๐ฏ ๐๐ฎ๐š๐› ๐‘ป๐’‰๐’Š๐’‚๐’‹ ๐’Ž๐’–๐’‚๐’‹ ๐’•๐’”๐’๐’ƒ ๐’™๐’š๐’๐’๐’ƒ ๐Ÿฒ๐Ÿฆš๐Ÿ‰๐Ÿฆƒ 14/10/2021 2024, Hlis ntuj nqeg
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Dawb - Daim duab cev . Kev kos duab ntawm a dawb - daim duab lub cev yog ib tseem ceeb kauj ruam nyob rau hauv kev daws teeb meem ntawm mechanics txij li thaum nws pab kom pom tag nrho cov quab yuam ua ntawm ib yam khoom. Lub net sab nraud quab yuam ua rau ntawm qhov khoom yuav tsum tau txais txhawm rau siv Newton Txoj Cai Thib Ob rau kev txav ntawm qhov khoom.

Ib sab ntawm qhov no, lub hom phiaj ntawm daim duab dawb lub cev yog dab tsi?

Dawb - daim duab lub cev yog daim duab siv los qhia qhov sib txheeb loj thiab kev coj ntawm txhua lub zog ua raws li qhov khoom hauv ib qho xwm txheej. A dawb - daim duab lub cev yog ib qho piv txwv tshwj xeeb ntawm vector daim duab uas tau tham hauv ib chav ua ntej.

Tsis tas li ntawd, daim duab qhia lub cev dawb yuav pab tau li cas los daws peb cov teeb meem hauv lub neej txhua hnub? Cov dawb lub cev daim duab tso cai rau koj los teeb tsa lub teeb meem kom raug kom koj thiaj li raug daws rau cov tsis paub xws li quab yuam, thiab acceleration. Nws tso cai rau koj kom tau txais "xav" rau qhov tshwm sim ua ntej siv qhov sib npaug ntawm cov lus tsa suab.

Ib tug kuj yuav nug, dab tsi yog lub ntsiab lus ntawm daim duab dawb lub cev?

Hauv physics thiab engineering, a dawb lub cev daim duab ( zog daim duab , lossis FBD) yog cov duab kos duab siv los ua kom pom lub zog siv, lub sijhawm, thiab qhov tshwm sim tshwm sim ntawm lub cev nyob rau hauv ib tug mob. Ib series ntawm dawb lub cev thiab lwm yam daim duab tej zaum yuav tsim nyog los daws cov teeb meem nyuaj.

Daim duab quab yuam yog dab tsi?

Drawing a Force Diagram Ib daim duab quab yuam tsuas yog ib daim duab qhia tag nrho cov quab yuam ua ntawm ib qho khoom , lub zog txoj kev taw qhia thiab nws qhov loj. Nws yog ib qho yooj yim ntawm daim duab uas qhia tau hais tias lub zog xwb. Hauv qhov piv txwv hauv qab no, thawj daim duab yog daim duab ntawm tus neeg nce toj ntawm ib sab ntawm pob tsuas.

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