Yuav ua li cas koj xam cov elastic muaj peev xwm ntawm lub caij nplooj ntoos hlav?
Yuav ua li cas koj xam cov elastic muaj peev xwm ntawm lub caij nplooj ntoos hlav?

Video: Yuav ua li cas koj xam cov elastic muaj peev xwm ntawm lub caij nplooj ntoos hlav?

Video: Yuav ua li cas koj xam cov elastic muaj peev xwm ntawm lub caij nplooj ntoos hlav?
Video: Tsis Muaj Peev Xwm Yuav Ua Li Cas 2024, Kaum ib hlis
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Elastic muaj peev xwm zog yog sib npaug rau lub zog lub sij hawm ntawm qhov kev ncua deb ntawm kev txav mus los. Elastic muaj peev xwm zog = quab yuam x deb ntawm kev xaav. Vim lub zog = caij nplooj ntoos hlav tas li x hloov chaw, ces tus Elastic muaj peev xwm zog = caij nplooj ntoos hlav tas li x hloov chaw squared.

Nyob rau hauv no hais txog, dab tsi yog qhov qhia txog lub peev xwm khaws cia rau hauv lub caij nplooj ntoos hlav?

Elastic muaj peev xwm zog yog Muaj peev xwm zog khaws cia Raws li qhov tshwm sim ntawm deformation ntawm cov khoom elastic, xws li ncab ntawm a caij nplooj ntoos hlav . Nws yog sib npaug rau cov hauj lwm ua kom ncab tus caij nplooj ntoos hlav , uas nyob ntawm tus caij nplooj ntoos hlav tas li k raws li qhov kev ncua deb stretched.

Tom qab ntawd, lo lus nug yog, pes tsawg lub zog khaws cia hauv lub caij nplooj ntoo hlav? yog koj stretch a caij nplooj ntoos hlav nrog k = 2, nrog lub zog ntawm 4N, qhov txuas ntxiv yuav yog 2m. cov hauj lwm ua los ntawm peb ntawm no yog 4x2 = 8J. nyob rau hauv lwm yam lus, lub zog pauv mus rau lub caij nplooj ntoos hlav yog 8j. mas, the khaws cia zog hauv caij nplooj ntoos hlav sib npaug 1/2x2x2^2 = 4J (uas yog ib nrab ntawm cov haujlwm ua los ntawm peb hauv kev ncab nws).

Ntawm no, puas muaj peev xwm ntawm lub caij nplooj ntoos hlav ib txwm zoo?

k yog caij nplooj ntoos hlav tsis tu ncua thiab A yog qhov siab tshaj plaws hloov chaw, ces tus muaj peev xwm zog nyob rau hauv cov hauj lwm huab dhau los ua xoom kom qhov sib txawv tseem zoo li qub. Yog li muaj peev xwm zog vim a caij nplooj ntoos hlav los yog vim muaj kev txwv kev quab yuam tuaj yeem ua tsis zoo, xoom lossis zoo.

Thaum twg lub peev xwm ntawm lub caij nplooj ntoos hlav tsawg kawg?

Cov caij nplooj ntoos hlav yog ncab qhov tsawg kawg nkaus, yog li ntawd, tus muaj peev xwm zog ntawm caij nplooj ntoos hlav yog at a yam tsawg kawg nkaus . Cov huab hwm coj yog lifted siab li nws yuav mus, yog li, lub muaj peev xwm zog vim lub ntiajteb txawj nqus yog qhov siab tshaj plaws. Qhov loj yog nres, yog li, nws kinetic zog yog zero.

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