Kab rov tav nrawm ntawm projectile yog tas mus li(ib qho tsis hloov pauv ntawm tus nqi), Muaj kev nrawm nrawm 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.
Vim li cas txoj kab rov tav ntawm qhov projectile tas li?
Lub zog ntawm lub ntiajteb txawj nqus tsis cuam tshuam rau kab rov tav ntawm kev txav; ib qhov projectile tswj qhov nrawm nrawm vim tsis muaj cov kab rov tav ua rau nws.
Yuav ua li cas koj pom kab rov tav tshaj tawm ntawm qhov projectile?
Kev faib tawm raws sijhawm
faib kab rov tav hloov raws sijhawm nrhiav kab rov tav tshaj tawm. Hauv qhov piv txwv, Vx=4 meters ib ob.
Dab tsi yog qhov acceleration nyob rau hauv kab rov tav kev taw qhia thaum lub sij hawm projectile?
Rau txoj kab rov tav ntawm qhov projectile, muaj qhov xoom acceleration.
Thaum twg ntawm nws txoj kev yog kab rov tav ntawm qhov nrawm ntawm qhov projectile qhov tsawg tshaj plaws?
Qhov ceev yog qhov tsawg tshaj plaws ntawm qhov siab tshaj plaws ntawm nws txoj kev ya dav hlau vim tias y- feem ntawm qhov nrawm yog xoom.
