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Video: Yuav ua li cas koj nrhiav tau lub sij hawm nrog impulse thiab quab yuam?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib impulse yog sib npaug rau net zog ntawm cov khoom lub sij hawm lub sij hawm lub sijhawm dhau qhov no zog yog siv. Hauv qab no, peb muab impulse los ntawm qhov sib npaug F = ma, uas yog los ntawm Newton txoj cai thib ob ntawm kev txav. Kawm peb kab hauv qab no thiab nyeem cov lus qhia hauv qab lawv.
Ib yam li ntawd, tej zaum koj yuav nug, koj yuav nrhiav tau dab tsi?
Impulse: Phau ntawv ceev
- momentum: ib qho kev ntsuas ntawm lub zog thiab ib qho kev ntsuas ntawm qhov nyuaj npaum li cas nws yuav tsum nres ib yam khoom. Momentum (p) = Mass (m) * Velocity (v)
- impulse: qhov ntsuas ntawm lub zog npaum li cas hloov lub zog ntawm ib yam khoom. Impulse = Force * sij hawm = force * Delta t. Delta t = t^final - t^initial.
Ib tug kuj yuav nug, puas impulse nce nrog lub sij hawm? Momentum yog loj nyob rau hauv kev txav, thiab tej yam khoom txav ua tau muaj zog. Ib qho khoom hloov pauv hauv lub zog yog sib npaug rau nws impulse . Impulse yog ib tug kom muaj nuj nqis sij hawm tus sij hawm lub sijhawm. Raws li koj txo cov sij hawm ntawm impulse , zog nce.
Ntxiv mus, dab tsi yog lub zog ntawm impulse?
Nyob rau hauv classical mechanics, impulse (symbolized los ntawm J lossis Imp) yog qhov tseem ceeb ntawm a zog , F, dhau lub sijhawm luv, t, uas nws ua. Txij li thaum zog yog vector kom muaj nuj nqis, impulse kuj yog vector kom muaj nuj nqis. Ib tug tshwm sim zog ua rau acceleration thiab ib tug hloov nyob rau hauv lub ceev ntawm lub cev ntev npaum li cas nws ua.
Dab tsi yog impulse sib npaug?
Impulse yog ib lub tswv yim tseem ceeb hauv kev kawm ntawm lub zog. Ib impulse yog sib npaug lub net quab yuam ntawm cov khoom lub sij hawm lub sij hawm lub sij hawm uas lub zog no yog siv. Hauv qab no, peb muab impulse los ntawm qhov sib npaug F = ma, uas yog los ntawm Newton txoj cai thib ob ntawm kev txav.
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