Lub ntsiab lus ntawm resultant vector yog dab tsi?
Lub ntsiab lus ntawm resultant vector yog dab tsi?

Video: Lub ntsiab lus ntawm resultant vector yog dab tsi?

Video: Lub ntsiab lus ntawm resultant vector yog dab tsi?
Video: 23_7_2023 lub ntsiab lus ntawm phau lus kas 16:1-13 2024, Lub peb hlis ntuj
Anonim

A qhov tshwm sim vector yog kev sib xyaw ntawm ob lossis ntau dua ib leeg cov duab . Thaum siv ib leeg, lub sij hawm vector hais txog cov duab sawv cev ntawm qhov loj thiab kev taw qhia ntawm lub cev lub cev xws li quab yuam, tshaj tawm, lossis kev nrawm.

Kuj nug, dab tsi yog qhov tshwm sim vector?

Cov tshwm sim yog cov vector sum ntawm ob los yog ntau tshaj cov duab . Nws yog qhov tshwm sim ntawm kev ntxiv ob lossis ntau dua cov duab ua ke. Thaum hloov chaw cov duab ntxiv, qhov tshwm sim yog a tshwm sim hloov chaw. Tab sis ob qho tib si cov duab tuaj yeem ntxiv ntev npaum li lawv zoo ib yam vector kom muaj nuj nqis.

Tsis tas li ntawd, koj txhais li cas los ntawm qhov tshwm sim?: muab los ntawm los yog tshwm sim los ntawm lwm yam. tshwm sim . Txhais ntawm tshwm sim (Nrawm 2 ntawm 2): ib yam dab tsi uas tshwm sim: qhov tshwm sim tshwj xeeb: tib lub vector uas yog qhov sib npaug ntawm cov txheej txheem vectors. Lwm cov lus los ntawm tshwm sim Synonyms & Antonyms Piv txwv kab lus Kawm ntxiv txog tshwm sim.

Ib tug kuj yuav nug, dab tsi yog lub mis rau resultant vector?

Xav tias ob lub nkoj tab tom txav mus rau qhov sib txawv ntawm qee lub kaum sab xis ntawm lawv thiab peb yuav tsum nrhiav qhov kev ncua deb ntawm lawv peb siv qauv R2=a2+b2−2abcosθ Tab sis yog peb yuav tsum nrhiav tus tshwm sim ntawm ob lub zog peb siv lub qauv R2=a2+b2+2abcosθ.

Dab tsi yog qhov chaw ntawm vector?

Hauv physics, thaum koj tawg a vector hauv nws ntu , cov ntu hu ua nws cov khoom . Piv txwv li, nyob rau hauv lub vector (4, 1), x-axis (kab rov tav) tivthaiv yog 4, thiab y-axis (nruab nrab) tivthaiv yog 1.

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