Resposta :
v = vo + at
- 30 = 0 - 10x
10x = 30
x = 3 s
h = gt²/2
h = 10(2x)²/2
h = 5(6)²
h = 5.36
h = 180 m
------------------------------------- > B
v = vo + at
- 30 = 0 - 10x
10x = 30
x = 3 s
h = gt²/2
h = 10(2x)²/2
h = 5(6)²
h = 5.36
h = 180 m
------------------------------------- > B