SI unit of tshaj tawm yog meter ib ob (m/s). Xwb, qhov nrawm nrawm kuj tuaj yeem qhia hauv centimeters ib ob (cm / s).
Lub ntsuas qhov nrawm thiab nrawm yog dab tsi?
Velocity yog tus nqi hloov ntawm txoj haujlwm nrog rau lub sijhawm, qhov nrawm yog qhov hloov ntawm qhov nrawm. Ob leeg yog vector kom muaj nuj nqis (thiab yog li tseem muaj cov lus qhia tshwj xeeb), tab sis cov ntsuas qhov nrawm yog meters ib thib ob thaum cov units ntawm acceleration yog meters ib ob squared
Kev ntsuas qhov nrawm hauv physics yog dab tsi?
SI unit rau qhov nrawm yog m/s. Kev nrawm yog vector thiab yog li muaj kev taw qhia. Instantaneous velocity v yog qhov tshaj tawm ntawm qhov tshwj xeeb tam sim lossis qhov nruab nrab tshaj tawm rau lub sijhawm tsis kawg. Instantaneous speed yog qhov loj ntawm qhov nrawm nrawm.
Dab tsi yog qhov loj dua ntawm qhov nrawm?
Teb: Qhov loj dua ntawm qhov nrawm yog Km / hr. chav me me ntawm qhov ceev yog m/sec.
SI unit of time yog dab tsi?
thib ob, cim s , yog SI chav tsev ntawm lub sijhawm. Nws yog txhais los ntawm kev noj cov lej tas li ntawm cov cesium zaus Δν Cs, qhov tsis muaj kev cuam tshuam hauv av-xeev hyperfine hloov pauv zaus ntawm cesium 133 atom, yog 9 192 631 770 thaum qhia hauv unit Hz, uas yog sib npaug rau s-1
