Dab tsi yog qhov khoom poob dawb?
Dab tsi yog qhov khoom poob dawb?

Video: Dab tsi yog qhov khoom poob dawb?

Video: Dab tsi yog qhov khoom poob dawb?
Video: yog hmoov dab tsi tub huas xyooj 2024, Hlis ntuj nqeg
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Raws li tau hais hauv Zaj Lus Qhia 5, a dawb - poob khoom yog ib khoom uas yog poob nyob rau hauv ib qho kev cuam tshuam ntawm lub ntiajteb txawj nqus. Uas yog hais tias ib yam khoom uas txav thiab ua raws li tsuas yog lub zog ntawm lub ntiajteb txawj nqus yog hais tias yog "nyob rau hauv ib lub xeev ntawm dawb poob ."Ib yam li ntawd khoom Nws yuav ua rau muaj kev nrawm nrawm ntawm 9.8 m / s / s.

Ib sab ntawm qhov no, piv txwv li lub caij nplooj zeeg dawb yog dab tsi?

Ib txhia piv txwv ntawm cov khoom uas nyob hauv dawb poob suav nrog: Ib lub dav hlau nyob hauv lub voj voog tsis tu ncua. Cov dawb poob yuav xaus thaum cov khoom siv propulsion qhib. Ib pob zeb poob rau hauv ib lub qhov dej khoob. Ib yam khoom, nyob rau hauv qhov projectile motion, ntawm nws qhovntsej thiaj tsis mob.

Tsis tas li ntawd, koj yuav ua li cas thiaj nrhiav tau lub zog ntawm qhov khoom poob dawb? Dawb lub caij nplooj zeeg / poob nrawm sib npaug

  1. Lub ntiajteb txawj nqus, g = 9.8 m/s2 Lub ntiajteb txawj nqus ceev koj ntawm 9.8 meters ib ob ib ob.
  2. Lub sij hawm rau splat: sqrt (2 * qhov siab / 9.8)
  3. Tshaj tawm ntawm lub sij hawm splat: sqrt (2 * g * qhov siab)
  4. Lub zog ntawm splat lub sij hawm: 1/2 * huab hwm coj * tshaj tawm2 = loj * g * qhov siab.

Ib yam li ib tug yuav nug, vim li cas lub caij nplooj zeeg dawb yog qhov tseem ceeb?

Caij nplooj zeeg dawb Motion Objects uas tau hais tias tab tom ua dawb poob , tsis ntsib ib tseem ceeb quab yuam ntawm huab cua tsis kam; lawv tab tom poob rau hauv ib qho kev cuam tshuam ntawm lub ntiajteb txawj nqus. Nyob rau hauv cov xwm txheej zoo li no, txhua yam khoom yuav poob nrog tib tus nqi ntawm acceleration, tsis hais lawv cov huab hwm coj.

Puas yog dawb poob ib lo lus?

verb (siv tsis muaj khoom), dawb - poob, dawb - poob · ib, dawb - poob · ib. (ntawm parachutists) nqis los pib, raws li lub sijhawm teem tseg, hauv a dawb poob : Cov jumpers yuav tsum tau dawb - poob rau yim vib nas this.

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