Video: Qhov twg yog lub zog kinetic tshaj plaws ntawm lub pendulum?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kinetic zog yog siab tshaj thaum lub nrawm yog qhov siab tshaj . Qhov no tshwm sim nyob rau hauv qab ntawm lub pendulum.
Hauv qhov no, ua li cas koj pom lub zog kinetic ntawm lub pendulum?
Cov kinetic zog KE = ½mv2, qhov twg m yog qhov loj ntawm lub pendulum , thiab v yog qhov ceev ntawm lub pendulum . Ntawm nws qhov siab tshaj plaws (Point A) lub pendulum yog ib ntus motionless. Tag nrho cov zog hauv pendulum yog gravitational muaj peev xwm zog thiab tsis muaj kinetic zog.
Ib yam li ntawd, thaum lub pendulum swings thaum twg lub kinetic zog loj tshaj? Yog li ntawd, a swinging pendulum muaj nws loj tshaj kinetic zog thiab tsawg kawg muaj peev xwm zog nyob rau hauv txoj hauj lwm ntsug, nyob rau hauv uas nws ceev yog loj tshaj thiab nws qhov siab tsawg kawg nkaus; nws muaj qhov tsawg kawg nkaus kinetic zog thiab lub zog loj tshaj plaws ntawm lub extremities ntawm nws viav vias , nyob rau hauv uas nws ceev yog xoom thiab nws qhov siab yog loj tshaj.
Dhau li ntawm no, qhov twg yog lub zog kinetic loj tshaj?
Kinetic zog yog zog ib qho khoom muaj vim nws cov lus tsa suab thiab sib npaug rau ib nrab ntawm qhov loj ntawm ib qho khoom sib npaug los ntawm nws qhov nrawm squared (KE = 1/2 mv2). Kinetic zog yog loj tshaj ntawm qhov qis tshaj ntawm tus menyuam coaster thiab tsawg kawg ntawm qhov chaw siab tshaj.
Thaum twg S lub pendulum muaj lub zog loj tshaj plaws?
Cov muaj peev xwm zog ntawm pendulum mus txog nws tus nqi siab tshaj plaws ntawm txoj haujlwm E, thiab tsis yog nce lossis txo qis ntawm qhov ntawd taw tes . 21.
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