Video: Yuav ua li cas koj thiaj nrhiav tau qhov ceev vs lub sij hawm daim duab?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Txoj kab nqes ntawm txoj kab ntawm txoj hauj lwm vs time graph yog sib npaug rau cov ceev ntawm qhov khoom. Txoj kab nqes ntawm txoj kab ntawm velocity vs time graph yog sib npaug rau qhov acceleration ntawm cov khoom.
Ntawm no, dab tsi yog qhov nrawm vs lub sijhawm teeb qhia?
A ceev - lub sij hawm graph qhia hloov hauv ceev ntawm ib qho khoom txav mus sij hawm . Txoj kab nqes ntawm a ceev - lub sijhawm ua haujlwm sawv cev acceleration ntawm cov khoom txav.
Ib tug kuj yuav nug, dab tsi tsis zoo tshaj tawm zoo li ntawm daim duab? Thaum txoj kab ncaj nraim, a tsis zoo tshaj tawm txhais tau hais tias qhov khoom txav rov qab. Yog li, qhov tshwm sim ntawm no yog tias lub tsheb tam sim no tau tsav rov qab ntawm txoj kev. On ib ceev vs lub sijhawm daim duab , txhua lub sij hawm txoj kab hla lub x axis, cov khoom yog hloov cov kev taw qhia.
Yog li ntawd, tus qauv rau nruab nrab tshaj tawm yog dab tsi?
Nruab nrab ceev (v) ntawm ib yam khoom yog sib npaug rau nws qhov kawg ceev (v) plus pib ceev (u), muab faib ua ob. Qhov twg: ¯v = nruab nrab ceev . v = final ceev.
Tus qauv ntawm kev hloov pauv yog dab tsi?
Taw qhia rau lub Kev khiav tawm thiab Acceleration Equation Nws nyeem: Kev khiav tawm sib npaug qhov qub tshaj tawm los ntawm lub sij hawm ntxiv rau ib nrab ntawm qhov acceleration multiplied los ntawm lub square ntawm lub sij hawm. Ntawm no yog ib qho piv txwv teeb meem thiab nws txoj kev daws teeb meem uas qhia txog kev siv qhov sib npaug: Ib qho khoom txav nrog qhov nrawm ntawm 5.0 m / s.
Pom zoo:
Yuav ua li cas koj kos ib lub nrawm vs lub sij hawm daim duab?
Kos rau ntawm daim ntawv kos duab ob kab ncaj nraim los ntawm tib lub ntsiab lus thiab perpendicular rau ib leeg. Qhov no yog x-y axis. X-axis yog kab rov tav thiab y-axis yog kab ntsug. Kos qhov tsim nyog sib npaug ntawm lub sijhawm sib npaug ntawm lub x-axis kom koj tuaj yeem yooj yim teeb tsa lub sijhawm muaj nuj nqis los ntawm lub rooj
Yuav ua li cas nce lub sij hawm lub sij hawm?
Los ntawm sab saum toj mus rau hauv qab ib pawg, electronegativity txo. Qhov no yog vim tus naj npawb atomic nce ib pawg, thiab yog li muaj kev ncua deb ntawm valence electrons thiab nucleus, los yog ntau dua atomic radius
Yuav ua li cas koj nrhiav tau ceev nrog acceleration thiab lub sij hawm?
Yog hais tias lub acceleration yog tas li, ces acceleration = hloov nyob rau hauv ceev / sij hawm rau qhov kev hloov. Yog li qhov kev hloov ntawm qhov nrawm yog qhov accelerationtimes lub sijhawm. Koj tseem yuav tsum paub qhov pib nrawm uas koj ntxiv rau qhov kev hloov pauv. (Yog tias acceleration tsis tas li koj xav tau kev suav.)
Yuav ua li cas koj kos ib qhov deb vs lub sij hawm daim duab?
Qhov nrug Lub Sijhawm graph yog kab graph uas qhia txog qhov kev ncua deb piv rau lub sijhawm pom ntawm daim duab. Kev kos duab nyob deb-lub sij hawm yog qhov yooj yim. Rau qhov no, peb xub muab ib daim ntawv ntawm daim duab kos thiab kos ob kab perpendicular rau nws conjoining ntawm O. Thehorizontal kab yog X-axis, thaum lub verticle kab yog Y-axis
Yuav ua li cas koj xam lub sij hawm nws yuav siv sij hawm mus ncig teb chaws?
Kwv yees seb koj yuav mus sai npaum li cas ntawm koj qhov kev mus ncig. Tom qab ntawd, faib koj qhov kev ncua deb ntawm koj qhov nrawm. Qhov no yuav muab rau koj anestimation ntawm koj lub sijhawm mus ncig. Piv txwv li, yog tias koj mus ncig yog 240 mais thiab koj yuav tsav 40 mais ib teev, koj lub sijhawm yuav yog 240/40 = 6hours