Ceev yog qhov ntau npaum li cas - nws yog tus nqi hloov pauv ntawm qhov kev ncua deb mus los ntawm ib qho khoom, thaum nrawm yog vector ntau - nws yog qhov nrawm ntawm cov khoom hauv ib qho kev taw qhia.
Puas nrawm thiab loj vectors?
Tus vector sib piv rau qhov hnyav. Qhov hnyav yog vector kom muaj nuj nqis. Qhov hnyav yog lub zog, thiab lub zog yog vectors, i.e. muaj ob qhov loj thiab kev coj. … Ceev yog ib tug scalar kom muaj nuj nqis, tsuas muaj magnitude thiab tsis muab cov ntaub ntawv hais txog kev taw qhia.
Vim li cas kev nrawm nrawm thiab nrawm yog vector kom muaj nuj nqis?
Scalars yog ntau yam uas tau piav qhia tag nrho los ntawm qhov loj (lossis tus nqi tus lej) ib leeg. Vectors yog qhov ntau uas tau piav qhia tag nrho los ntawm qhov loj thiab qhov taw qhia.
Puas yog vector kom muaj nuj nqis?
(Introduction to Mechanics) vector quantities is quantities that have two magnitude and direction. Lub zog muaj ob qhov loj thiab kev taw qhia, yog li ntawd: Lub zog yog vector kom muaj nuj nqis; nws cov units yog newtons, N. … Txoj cai no ces txuas ntxiv thaum xav txog ntau zog.
Puas ua haujlwm yog vector kom muaj nuj nqis?
Ib qhov ntau uas yog vector tau piav qhia tag nrho los ntawm qhov loj thiab kev taw qhia. Vector kom muaj nuj nqis yog cov kev taw qhia nco qab thiab ib txwm qhia nyob rau hauv cov nqe lus ntawm tus lej tus nqi ntxiv rau kev taw qhia. … Kev ua hauj lwm tsis yog vector kom muaj nuj nqis, tab sis ib qho scalar kom muaj nuj nqis.
