Respostas

2014-05-25T19:48:16-03:00
V = Vo + at
160 = 0 + 4t
160/4 = t

t = 40 segundos
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2014-05-25T19:56:02-03:00
V = Vo + at
160 = 0 + 4t
t = 160 / 4
t = 40 segundos