Video: P MV txhais li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
P = MV lub zog ( P ) sib npaug qhov loj ntawm ib yam khoom (M) zaus nws tshaj tawm (V).
Tom qab ntawd, ib tug kuj nug, P MV ua dab tsi?
F = MA yog piav txog lub zog, thaum P = MV yog lub zog tiag tiag. Thawj qhov sib npaug hais tias Lub Zog yog sib npaug rau Mass times Acceleration, lossis Newton txoj cai thib ob ntawm kev txav. Qhov thib ob hais tias Momentum ( P ) yog sib npaug rau Mass times Velocity.
Tsis tas li ntawd, P txhais li cas hauv lub zog? Hauv physics, muaj qhov ntau uas sawv cev rau qhov khoom ntawm qhov hnyav thiab qhov nrawm ntawm ib qho khoom. Qhov ntau yog hu ua lub zog . Qhov sib npaug nrov rau lub zog raws li Newton txoj cai yog qhov ntawd P =MV. Ntawm no, P sawv rau lub zog , M stands for mass thiab V stands for velocity of an object.
Ntawm no, koj siv P MV li cas?
Lub Momentum Tshuab xam zauv siv tus qauv p = mv , los yog lub zog ( p ) yog sib npaug rau qhov loj (m) zaus tshaj tawm (v). Lub tshuab xam zauv tuaj yeem siv ib qho ob ntawm qhov tseem ceeb los xam qhov thib peb. Nrog rau qhov muaj nuj nqis, nkag mus rau qhov paub ntsuas ntsuas rau txhua qhov thiab lub tshuab xam zauv no yuav hloov ntawm cov units.
Lub zog rau lub zog yog dab tsi?
Chav tsev ntawm lub zog yog qhov khoom ntawm cov units ntawm pawg thiab ceev. Hauv SI units, yog tias cov pawg Nws yog nyob rau hauv kilograms thiab qhov ceev yog nyob rau hauv meters ib thib ob ces lub zog yog nyob rau hauv kilogram meters ib thib ob ( kg ⋅m/s).
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