Video: Yog vim li cas velocity yog ib qho tseem ceeb ntawm acceleration?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
yog peb paub nws kev ceev raws li kev ua haujlwm ntawm lub sijhawm? Kev nrawm yog qhov thib ob derivative ntawm kev hloov pauv nrog rau lub sijhawm, Los yog thawj qhov kev hloov pauv ntawm nrawm Nrog rau lub sijhawm: Inverse txheej txheem: Kev koom ua ke . Kev nrawm yog ib ib feem ntawm acceleration dhau sijhawm.
Kuj paub, dab tsi yog qhov tseem ceeb ntawm kev tshaj tawm?
Cov ib qho ntawm acceleration nyob rau lub sij hawm yog hloov nyob rau hauv nrawm (∆v = ∫a dt). Cov ib qho ntawm kev tshaj tawm Lub sijhawm dhau los yog qhov hloov pauv hauv txoj haujlwm (∆s = ∫v dt).
Ib yam li ntawd, 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.
Ntawm no, yog vim li cas yog derivative ntawm velocity acceleration?
Kev nrawm yog qhov hloov ntawm txoj hauj lwm, yog li nws yog txoj kab nqes ntawm txoj hauj lwm. Kev nrawm yog qhov kev hloov hauv nrawm , yog li nws yog qhov kev hloov hauv nrawm . Txij li thaum derivatives yog hais txog txoj kab nqes, uas yog li cas tus derivative ntawm txoj hauj lwm yog nrawm , thiab cov derivative ntawm velocity yog kev ceev.
Puas yog qhov nrawm nrawm?
Ceev , ua ib qho scalar quantity, yog tus nqi ntawm qhov khoom npog qhov deb. Qhov nruab nrab ceev yog qhov kev ncua deb (scalar kom muaj nuj nqis) ib lub sij hawm piv. Ntawm qhov tod tes, nrawm yog vector kom muaj nuj nqis; nws yog kev taw qhia-paub. Kev nrawm yog tus nqi ntawm txoj haujlwm hloov.
Pom zoo:
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