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Video: Yuav ua li cas koj xam ntsug projectile motion?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov ntsug acceleration muaj tus nqi tas li ntawm rho g, qhov g yog acceleration vim lub ntiajteb txawj nqus, 9.8 meters ib ob-squared ntawm peb ntiaj chaw. Tus qauv thib ob qhia peb tias qhov kawg ntsug velocity, vy, sib npaug rau qhov pib ntsug ceev, vo, minus g times t.
Ib yam li ntawd, koj tuaj yeem nug, koj ua li cas xam qhov projectile motion?
Projectile motion equations
- Kab rov tav velocity tivthaiv: Vx = V * cos(α)
- Vertical velocity component: Vy = V * sin(α)
- Lub sijhawm ya davhlau: t = 2 * Vy / g.
- Ntau yam ntawm qhov projectile: R = 2 * Vx * Vy / g.
- Qhov siab tshaj plaws: hmax = Vy² / (2 * g)
Ib yam li ntawd, dab tsi yog ntsug projectile motion? Qhov projectiles yog cov khoom uas txav mus los ntawm huab cua. Hauv ntsug projectile motion peb cuam tshuam nrog cov khoom uas poob rau hauv lub ntiajteb txawj nqus thiab xwb ntsug . Lub sij hawm nws yuav siv ib yam khoom los nce mus rau nws qhov siab tshaj plaws, yog tib yam li lub sij hawm nws yuav siv sij hawm rov qab mus rau nws qhov siab thawj zaug.
Ib yam li ntawd, tib neeg nug, ua li cas koj thiaj li pom qhov nrawm nrawm ntawm qhov projectile?
Muaj ib ntsug acceleration tshwm sim los ntawm lub ntiajteb txawj nqus; nws tus nqi yog 9.8 m / s / s, down, The ntsug velocity ntawm ib qhov projectile hloov los ntawm 9.8 m / s txhua ob, Lub kab rov tav zog a projectile yog ywj siab ntawm nws ntsug kev taw qhia.
Ob hom kev txav ntawm qhov projectile yog dab tsi?
Projectile zog tuaj yeem tshwm sim hauv txoj kev ncaj, ncig, parabolic, hyperbolic, elliptical thiab lwm yam. Projectile zog tuaj yeem muab faib ua ob qeb (rau kev taw qhia nyob rau hauv ib lub dav hlau nyob rau hauv parabolic txoj kev) nyob ntawm seb lub kab rov tav theem ntawm lub projectile thaum lub sij hawm kev taw qhia tseem zoo li qub los tsis.
Pom zoo:
Yuav ua li cas koj xam lub sij hawm nyob rau hauv motion?
Kev daws rau lub sijhawm. Tus nqi ntawm kev hloov ntawm txoj hauj lwm, los yog ceev, yog sib npaug rau qhov kev ncua deb uas tau muab faib los ntawm lub sij hawm. Tosolve rau lub sij hawm, faib qhov kev ncua deb mus los ntawm tus nqi.Piv txwv li, yog Cole tsav nws lub tsheb 45 km ib teev thiab mus atotal ntawm 225 km, ces nws mus rau 225/45 = 5hours
Dab tsi yog qhov ntsug ntawm qhov projectile?
Kab rov tav tshaj tawm ntawm ib qhov projectile yog qhov tsis tu ncua (ib qho tsis hloov pauv ntawm tus nqi), Muaj qhov ntsug acceleration tshwm sim los ntawm lub ntiajteb txawj nqus; Nws tus nqi yog 9.8 m / s / s, nqes, ntsug tshaj tawm ntawm ib qhov projectile hloov los ntawm 9.8 m / s txhua thib ob, Kab rov tav ntawm ib qhov projectile yog ywj siab ntawm nws txoj kab ntsug
Yuav ua li cas koj txheeb xyuas cov kev sib txuas ntxiv thiab cov kab ntsug?
Cov kaum sab xis yog ob lub kaum sab xis nrog qhov sib npaug ntawm 90º. Cov ces kaum ntxiv yog ob lub kaum sab xis nrog qhov sib npaug ntawm 180º. Vertical angles yog ob lub kaum sab xis uas nws ob sab tsim ob khub ntawm opposite rays. Peb tuaj yeem xav txog cov no yog cov kaum sab xis uas tsim los ntawm X
Yuav ua li cas koj xam lub sij hawm nws yuav siv sij hawm mus ncig teb chaws?
Kwv yees seb koj yuav mus sai npaum li cas ntawm koj qhov kev mus ncig. Tom qab ntawd, faib koj qhov kev ncua deb ntawm koj qhov nrawm. Qhov no yuav muab rau koj anestimation ntawm koj lub sijhawm mus ncig. Piv txwv li, yog tias koj mus ncig yog 240 mais thiab koj yuav tsav 40 mais ib teev, koj lub sijhawm yuav yog 240/40 = 6hours
Yuav ua li cas koj xam lub sij hawm nws yuav siv ib yam khoom los poob?
Ntsuas qhov deb ntawm qhov khoom yuav poob hauv ko taw nrog tus pas ntsuas lossis ntsuas daim kab xev. Faib qhov kev ncua deb los ntawm 16. Piv txwv li, yog tias cov khoom yuav poob 128 ko taw, faib 128 los ntawm 16 kom tau 8. Xam cov square root ntawm cov kauj ruam 2 los nrhiav lub sij hawm nws yuav siv cov khoom poob hauv vib nas this