Video: Yuav ua li cas koj ua hauj lwm tawm lub resultant quab yuam siv ib tug parallelogram ntawm rog?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nrhiav qhov tshwm sim , koj yuav ua ib parallelogram nrog sab sib npaug rau ob daim ntawv thov zog . Diagonal ntawm no parallelogram ces yuav sib npaug rau cov ua zog . Qhov no yog hu ua parallelogram ntawm lub zog txoj cai.
Ntawm no, yuav ua li cas koj ua hauj lwm tawm lub resultant quab yuam ntawm ib tug parallelogram ntawm rog?
Ua ntej, kos ob lub vectors tail rau tus Tsov tus tw. Tom ntej no, kos kab sib npaug rau txhua qhov vector los tsim ib qho parallelogram . Cov ua zog (los yog zog uas tuaj yeem hloov tau ob lub vectors thiab tseem muaj cov nyhuv tib yam ntawm lub cev raws li qhov qub ob) yog kab pheeb ces kaum ntawm lub parallelogram (Vector "R").
Ib yam li ntawd, koj yuav pom qhov tshwm sim ntawm lub zog sib npaug li cas? Qhov tshwm sim ntawm Concurrent Force System
- Rx = ΣFx = Fx1 + Fx2 + Fx3 + Cov khoom x ntawm cov txiaj ntsig yog sib npaug rau qhov kev suav ntawm cov rog hauv x-kev taw qhia.
- Ry = ΣFy = Fx1 + Fx2 + Fx3 + Cov y-cov ntsiab lus ntawm qhov tshwm sim yog sib npaug rau qhov sib npaug ntawm cov rog hauv y-kev taw qhia.
- Rz=ΣFz=Fx1+Fx2+Fx3+
Qhov thib ob, dab tsi yog tus qauv rau lub zog tshwm sim?
Daim ntawv ceeb toom tias rooj plaub ntawm ob qhov sib npaug tab sis opposite zog F thiab -F ua yeeb yam ntawm cov ntsiab lus A thiab B feem, yields tshwm sim W = (F - F, A × F - B × F) = (0, (A - B) × F).
Yuav ua li cas koj pom lub resultant quab yuam graphically?
Cov tshwm sim tuaj yeem sawv cev duab los ntawm kab pheeb ces kaum ntawm parallelogram tsim los ntawm kev siv ob zog vectors rau txiav txim qhov ntev ntawm ob sab ntawm parallelogram. Cov qhov loj ntawm tshwm sim tuaj yeem ntsuas qhov tseeb raws li qhov ntsuas qhov ntev ntawm kab pheeb ces kaum.
Pom zoo:
Yuav ua li cas koj nrhiav tau lub sij hawm nrog impulse thiab quab yuam?
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Koj txhais li cas los ntawm kev quab yuam?
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Yuav ua li cas koj pom qhov nruab nrab tshaj tawm ntawm qhov tshaj tawm vs lub sijhawm teeb?
Qhov chaw nyob hauv qab qhov nrawm / lub sijhawm nkhaus yog tag nrho cov kev hloov pauv. Yog tias koj faib qhov ntawd los ntawm kev hloov pauv hauv lub sijhawm, koj yuav tau txais qhov nruab nrab tshaj tawm. Velocity yog vector daim ntawv ntawm kev ceev. Yog tias qhov nrawm ib txwm tsis yog qhov tsis zoo, ces qhov nruab nrab tshaj tawm thiab qhov nruab nrab ceev yog tib yam