Video: Vim li cas cov duab freebody tseem ceeb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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.
Pom zoo:
Vim li cas lub koob yees duab tseem ceeb heev?
Telescopes tau qhib peb lub qhov muag rau lub ntiaj teb. Cov koob yees duab thaum ntxov tau qhia tias lub ntiaj teb tsis yog qhov chaw nruab nrab ntawm lub ntiaj teb, ib yam li yav tas los ntseeg. Telescopes kuj tau nthuav tawm cov ntiaj chaw tshiab thiab asteroids. Cov cuab yeej no tau pab peb ua qhov kev ntsuas thawj zaug ntawm qhov ceev ntawm lub teeb
Vim li cas qhov tseem ceeb ntawm qhov tseem ceeb?
Thaum koj pom tus nqi kiag li hauv qhov teeb meem lossis qhov sib npaug, nws txhais tau hais tias txhua yam nyob hauv tus nqi tiag tiag yog qhov zoo. Cov txiaj ntsig tsis zoo feem ntau siv rau hauv cov teeb meem cuam tshuam nrog kev nyob deb thiab qee zaum siv nrog qhov tsis sib xws. Qhov ntawd yog qhov tseem ceeb uas yuav tsum nco ntsoov nws zoo li qhov deb ntawm xoom
Vim li cas Orthocenter ntawm daim duab peb sab tseem ceeb?
Lub orthocenter, yog qhov coincidence ntawm qhov siab. Peb mob siab txog lub orthocenter vim nws yog ib qho tseem ceeb hauv nruab nrab ntawm daim duab peb sab. Txoj kab txiav txim siab los ntawm ob qho ntawm cov ntsiab lus no yog perpendicular rau kab txiav txim los ntawm ob lub ntsiab lus
Vim li cas cov nuj nqis tseem ceeb tseem ceeb thaum qhia txog kev ntsuas?
Cov duab tseem ceeb yog qhov tseem ceeb los qhia qhov tseeb ntawm koj cov lus teb. Qhov no yog qhov tseem ceeb hauv kev tshawb fawb thiab engineering vim tias tsis muaj cov cuab yeej ntsuas tuaj yeem ua qhov ntsuas nrog 100% precision. Siv cov nuj nqis tseem ceeb tso cai rau tus kws tshawb fawb paub tias cov lus teb meej npaum li cas, lossis qhov tsis paub meej npaum li cas
Cov kws kos duab hu li cas cov duab thiab cov duab siv los sawv cev rau cov yam ntxwv ntawm lub ntiaj teb nto?
Ntiaj Teb Kev Tshawb Fawb - Daim Ntawv Qhia Lub Ntiaj Teb Qhov Nto A B GLOBE Ib puag ncig uas sawv cev rau lub ntiaj teb nto. SCALE Siv los sib piv qhov deb ntawm daim ntawv qhia lossis lub ntiaj teb mus deb ntawm lub ntiaj teb nto. SYMBOLS Ntawm daim duab qhia chaw, cov duab siv los ntawm mapmakers sawv ntsug rau cov yam ntxwv ntawm lub ntiaj teb nto. TSEEM CEEB Ib daim ntawv teev cov cim siv rau ntawm daim ntawv qhia