Video: Vim li cas kinetic zog nyob ntawm qhov loj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kinetic zog yog lub zog ntawm kev tawm suab. Yog li qhov loj dua pawg qhov loj dua tag nrho cov peev xwm zog . KE = 1/2mv^2 Kinetic zog yog sib npaug rau pawg lub sij hawm ceev. Ib yam khoom hnyav uas muab pov tseg qeeb qeeb zog mus rau lub hom phiaj tshaj ib yam khoom hnyav nthws ntawm tus nqi siab.
Tsis tas li ntawd, lub zog kinetic nyob ntawm qhov loj li cas?
Kinetic zog yog ncaj qha proportional rau cov pawg ntawm cov khoom thiab mus rau lub square ntawm nws tshaj tawm: K. E. = 1/2 m v2. Yog tias pawg muaj units ntawm kilograms thiab qhov tshaj tawm ntawm meters ib ob, lub kinetic zog muaj units ntawm kilo-meters squared ib ob squared.
Tsis tas li ntawd, vim li cas cov khoom uas muaj ntau ntau muaj zog kinetic? Ntau tshwj xeeb, a ntau loj heev khoom yuav xav tau ntau ua hauj lwm nyob rau hauv thiaj li yuav tau los ntawm so mus rau qhov nrawm v, thiab yog li ntawd muaj a siab zog kinetic , dua ib lub teeb khoom uas mus los ntawm so mus rau tib lub nrawm v. Ib qho nyuaj rau thawb yuav muaj tus siab zog kinetic ib zaug nws tau txais qhov nrawm.
Ib tug kuj yuav nug, ua li cas lub zog kinetic nyob ntawm qhov loj thiab ceev?
Tus nqi ntawm kev txhais lus kinetic zog (los ntawm no mus, kab lus kinetic zog yuav xa mus rau translational kinetic zog ) uas ib yam khoom muaj nyob ntawm nyob rau hauv ob variables: lub pawg (m) ntawm cov khoom thiab cov ceev (v) ntawm qhov khoom. Cov kinetic zog yog nyob rau ntawm lub square ceev.
Dab tsi ua rau lub zog kinetic ntawm lub cev nyob ntawm?
Lub zog kinetic ntawm lub cev lossis khoom nyob ntawm nws ceev thiab pawg.
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