Distance fallen = 1/2 ( V initial + V final ) *t We know a = -9.8 m/s2 t=120s
To find distance fallen, we need to find V final Use the equation V final = V initial + a*t Substitute known values V final = 0 + (-9.8)(120) V final = -1176 m/s
Then plug known values to distance fallen equation Distance fallen = 1/2 ( 0 + 1176 )(120) = 1/2(1776)(120) =106,560 m
This way plugging into distance equation is actually the long way. A faster way is to plug the values into Distance fallen = V initial * t + 1/2(a*t) We won't need to find V final using another equation.