Vim li cas qhov deb vs lub sij hawm daim duab nkhaus?
Vim li cas qhov deb vs lub sij hawm daim duab nkhaus?

Video: Vim li cas qhov deb vs lub sij hawm daim duab nkhaus?

Video: Vim li cas qhov deb vs lub sij hawm daim duab nkhaus?
Video: yuav coj li cas kom luag nyiam 2024, Kaum ib hlis
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Lub hauv paus ntsiab lus yog txoj kab nqes ntawm txoj kab ntawm a txoj hauj lwm - lub sijhawm ua haujlwm nthuav tawm cov ntaub ntawv tseem ceeb txog qhov nrawm ntawm qhov khoom. Yog tias qhov nrawm nrawm, ces qhov nqes hav yog qhov tsis tu ncua (piv txwv li, txoj kab ncaj nraim). Yog tias qhov nrawm hloov, ces txoj kab nqes hloov (piv txwv li, a nkhaus kab).

Tsuas yog li ntawd, txoj kab nkhaus ntawm txoj hauj lwm vs lub sij hawm daim duab txhais li cas?

Yog ib txoj hauj lwm graph yog nkhaus , lub slopew yuav hloov, uas kuj txhais tau tias Lub nrawm hloov pauv. Hloov tshaj tawm implies acceleration. Yog li, curvature hauv a graphmeans cov khoom yog accelerating, changevelocity/slope.

Ib tug kuj yuav nug, koj yuav ua li cas yog tias lub sij hawm ncua sij hawm yog ncaj? Ceev yog txhais raws li kev hloov hauv nyob deb ib chav ntawm lub sijhawm . A nyob deb - sijhawm yog li ntawd sawv cev ceev. IE Acceleration = 0 thiab ceev yog li ntawd tas li.

Tsuas yog li ntawd, lub sijhawm ua haujlwm qhia li cas rau koj?

Tsab ntawv tsa suab tuaj yeem sawv cev los ntawm a txoj hauj lwm - sijhawm , qhov twg txoj hauj lwm txheeb ze rau qhov pib ntawm y-axis thiab sij hawm pe x-axis. Txoj kab nqes ntawm a txoj hauj lwm - lub sijhawm ua haujlwm sawv cev ceev. Txoj kev nqes hav yog, the nrawm dua qhov kev hloov pauv.

Tus qauv ntawm kev hloov pauv yog dab tsi?

Taw qhia rau lub Kev khiav tawm thiab AccelerationEquation Nws nyeem: Kev khiav tawm sib npaug ntawm qhov originalvelocity multiplied by time plus ib nrab ntawm accelerationmultiplied by square of time. Ntawm no yog ib qho piv txwv teeb meem thiab nws txoj kev daws teeb meem uas qhia txog kev siv qhov sib npaug no: Ib qho khoom txav nrog qhov nrawm ntawm 5.0 m / s.

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