Qhov kawg ntsug tshaj tawm ntawm qhov projectile ib txwm sib npaug rau qhov pib ntsug tshaj tawm. Qhov ntsug acceleration ntawm ib qhov projectile yog 0 m / s / sthaum nws nyob rau ntawm qhov kawg ntawm nws txoj kev taug.
Puas acceleration zero nyob rau sab saum toj ntawm txoj kev?
Raws li huab cua tsis txaus ntseeg, qhov nrawm ntawm qhov projectile yog qhov tsis tu ncua thiab sib npaug rau qhov nrawm vim lub ntiajteb txawj nqus. Lub acceleration ntawm lub projectile, yog li ntawd, yog tib yam nyob rau hauv txhua txhua taw tes nyob rau hauv nws trajectory, thiab tsis tuaj yeem yog xoom.
Puas ib yam khoom muaj acceleration nyob rau sab saum toj ntawm nws trajectory?
Txawm tias ntawm qhov kawg ntawm txoj kev taug, qhov nrawm tseem nqis qis. Nws tsuas yog hais tias ntawm lub ncov qhov projectile yog nyob rau hauv ib qho instant nyob rau hauv lub sij hawm nyob rau hauv uas lub ntsug tshaj tawm yog xoom raws li nws undergoes ib tug hloov ntawm ib tug nce mus rau ib tug downward direction.
nws acceleration nyob rau sab saum toj ntawm nws txoj kev yog dab tsi?
qhov nrawm ntawm qhov projectile nyob rau sab saum toj ntawm qhov hloov pauv yog 9.8 meter ib ob square.
Yuav nrawm npaum li cas ntawm lub pob saum toj ntawm nws txoj kev taug?
Nyob rau saum lub pob lub zog, nws muaj qhov nrawm ntawm xoom. Nyob rau sab saum toj ntawm nws cov lus tsa suab, lub pob muaj qhov nrawm ntawm - 9.8 m / s^2. Tsis muaj dab tsi tshwm sim rau qhov kev taw qhia ntawm lub pob lub zog thiab ntawm txoj kev nce kev nrawm qis.
