Respostas

2014-08-04T17:55:37-03:00
V² = Vo² + 2 * a *d
0² = Vo² + 2 * (-10) * 12
240 = Vo²
Vo =  \sqrt{240}
V ≈ 15,4 m/s
2014-08-04T18:24:05-03:00
V=?
V=vo+g.t
V=0+10.12
V=120 M/S