Video: Yuav ua li cas koj nrhiav tau ceev nrog acceleration thiab lub sij hawm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog tias kev ceev yog tas li, ces kev ceev = change in ceev / sij hawm rau qhov kev hloov ntawd. Yog li kev hloov hauv ceev yog cov kev ceev lub sij hawm sij hawm . Koj tseem yuav tsum paub qhov pib ceev uas koj ntxiv rau qhov kev hloov pauv. (Yog kev ceev tsis tas li koj xav tau calculus.)
Nyob rau hauv no txoj kev, yuav ua li cas koj nrhiav tau acceleration nrog ceev?
xam acceleration koom nrog kev faib ceev los ntawm lub sij hawm - los yog nyob rau hauv cov nqe lus ntawm SI units, faib lub 'meter' ib ob [m / s] los ntawm lub thib ob [s]. Kev faib nrug los ntawm lub sij hawm ob zaug yog tib yam li kev faib nrug los ntawm lub square ntawm lub sij hawm. Yog li lub SI unit ntawm kev ceev yog tus ' meter ' ib secondsquared.
Tom qab ntawd, lo lus nug yog, ua li cas koj nrhiav tau nrawm nrog kev ncua thiab sijhawm? Koj tuaj yeem siv cov qauv sib npaug d = rt uas txhais tau tias nyob deb sib npaug tus nqi sij hawm . daws rau ceev los yog tus nqi siv tus qauv rau ceev , s = d/tws ceev sib npaug nyob deb faib los ntawm sij hawm . daws rau sij hawm siv tus qauv rau sij hawm , t = d/s uas txhais tau tias sij hawm sib npaug nyob deb faib los ntawm ceev.
Tsis tas li ntawd, koj yuav nrhiav tau li cas thaum muab acceleration thiab lub sij hawm?
Rau xam qhov nrawm siv kev ceev , pib los ntawm multiplying kev ceev los ntawm kev hloov hauv sij hawm . Piv txwv li, yog tias cov kev ceev yog 10 m / s2 thiab hloov hauv sij hawm yog 5 vib nas this, ces muaj 50 m / sincrease nyob rau hauv ceev . Tom qab ntawd, ntxiv qhov pib ceev mus rau qhov nce hauv ceev.
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.
Pom zoo:
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