Video: Puas yog impulse thiab momentum tib yam?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Momentum yog qhov loj hauv kev txav, thiab txhua yam khoom txav tuaj yeem muaj lub zog . Ib yam khoom hloov hauv lub zog yog sib npaug rau nws impulse . Impulse yog ib tug kom muaj nuj nqis ntawm lub zog lub sij hawm. Impulse tsis sib npaug lub zog nws tus kheej; es, nws yog qhov nce los yog txo ntawm ib yam khoom lub zog.
Ib yam li ntawd, tib neeg nug, puas impulse thiab momentum muaj tib units?
Momentum yog vector kom muaj nuj nqis muaj ib yam kev taw qhia raws li qhov nrawm ntawm qhov khoom. Qhov kom muaj nuj nqis ntawm lub zog sib npaug los ntawm lub sijhawm nws raug siv yog hu ua impulse . Impulse yog vector kom muaj nuj nqis muaj ib yam kev taw qhia raws li lub zog. Momentum thiab impulse muaj tib units : kg·m/s.
Ib yam li ntawd, yog vim li cas impulse tseem ceeb? Vim lub impulse -momentum theorem, peb tuaj yeem ua qhov sib txuas ncaj qha ntawm qhov quab yuam ua li cas ntawm ib qho khoom dhau sijhawm thiab kev txav ntawm cov khoom. Ib qho yog vim li cas impulse yog tseem ceeb thiab muaj txiaj ntsig yog tias nyob hauv lub ntiaj teb tiag, cov rog feem ntau tsis tas li.
Cov lus nug tseem yog, ua li cas impulse cuam tshuam nrog lub zog?
Impulse yog ib qho kom muaj nuj nqis ze muaj feem xyuam rau lub zog . Thaum ib yam khoom muaj a lub zog , thiab lub zog siv rau lub sijhawm, lub lub zog tuaj yeem hloov mus rau tus nqi tshiab. Cov impulse - lub zog theorem hais tias impulse yog sib npaug rau qhov kev hloov pauv hauv lub zog.
Qhov txawv ntawm qhov cuam tshuam thiab impulse yog dab tsi?
Thaum impulse tau nkag siab txog kev hloov pauv ntawm lub zog ntawm lub cev thiab yog lub luag haujlwm ntawm lub zog siv thiab lub sijhawm uas nws siv, cuam tshuam lub zog yog lub zog siv rau lub sijhawm luv luv. Impulse yog ib qho tseem ceeb ntawm lub zog dhau lub sij hawm uas yog vim li cas nws muaj units txawv los ntawm lub zog.
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