Respostas

2014-09-03T15:12:55-03:00
V = Vo - g.t
V = -10 - 10.2
V = -30 m/s

Agora a altura com Torricelli:

V² = Vo² + 2.g.H
30² = 10² + 2.10.H
900 = 100 + 2.10.H
20.H = 800

H = 40 m