Respostas

A melhor resposta!
2014-06-21T14:13:05-03:00
V² = Vo² + 2.g.h (TORRICELLI)
80² = 0² + 2.10.h
6400 = 20h
h = 6400/20
h = 320 m

:)
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2014-06-21T14:13:17-03:00