Yuav ua li cas koj ntsuas qhov ceev thiab acceleration?
Yuav ua li cas koj ntsuas qhov ceev thiab acceleration?

Video: Yuav ua li cas koj ntsuas qhov ceev thiab acceleration?

Video: Yuav ua li cas koj ntsuas qhov ceev thiab acceleration?
Video: Yuav ua li cas thiaj khiav dim lub ntiajteb no 2024, Kaum ib hlis
Anonim

Lub hauv paus ntsiab lus yog txoj kab nqes ntawm txoj kab ntawm a nrawm - sij hawm daim duab nthuav tawm cov ntaub ntawv tseem ceeb ntawm cov kev ceev ntawm qhov khoom. Yog tias kev ceev yog xoom, ces txoj kab nqes yog xoom (piv txwv li, kab rov tav). Yog tias kev ceev yog qhov zoo, ces txoj kab nqes yog qhov zoo (piv txwv li, txoj kab nqes nqes mus).

Ib yam li ntawd, tus qauv ntawm kev hloov pauv yog dab tsi?

Taw qhia rau lub Kev khiav tawm thiab Acceleration Equation Nws nyeem: Kev khiav tawm sib npaug qhov qub tshaj tawm los ntawm lub sij hawm ntxiv rau ib nrab ntawm qhov acceleration multiplied los ntawm lub square ntawm lub sij hawm. Ntawm no yog ib qho piv txwv teeb meem thiab nws txoj kev daws teeb meem uas qhia txog kev siv qhov sib npaug: Ib qho khoom txav nrog qhov nrawm ntawm 5.0 m / s.

Ib yam li ntawd, tus qauv rau qhov nruab nrab tshaj tawm yog dab tsi? Nruab nrab ceev (v) ntawm ib yam khoom yog sib npaug rau nws qhov kawg nrawm (v) plus pib nrawm (u), muab faib ua ob. Qhov twg: ¯v = nruab nrab ceev . v = final nrawm.

Yog li ntawd, qhov kev sib raug zoo ntawm kev nrawm thiab nrawm yog dab tsi?

Kev nrawm yog tus nqi ntawm kev hloov ntawm txoj hauj lwm nrog rau lub sij hawm, whereas kev ceev yog tus nqi hloov ntawm nrawm . Ob leeg yog vector kom muaj nuj nqis (thiab yog li tseem muaj cov lus qhia tshwj xeeb), tab sis cov units ntawm nrawm yog meters ib ob thaum lub units ntawm kev ceev yog meters ib ob squared.

Koj pom qhov nrawm li cas?

Faib tag nrho cov kev hloov pauv los ntawm lub sijhawm tag nrho. Nyob rau hauv thiaj li yuav nrhiav tus nrawm ntawm cov khoom txav, koj yuav tsum tau faib cov kev hloov pauv hauv txoj haujlwm los ntawm kev hloov hauv lub sijhawm. Qhia meej qhov kev taw qhia txav, thiab koj muaj qhov nruab nrab nrawm.

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