Respostas

2013-11-02T18:10:40-02:00
V^2 = v0^2 + 2.a . DeltaS
0^2 = 2^2 + 2. (-2) . DeltaS
0 = 4 - 4 . DeltaS
-4 = -4 . DeltaS 
DeltaS = -4 / -4
DeltaS = 1 m