Respostas

2013-03-17T22:35:42-03:00

20 minutos = 1200s

s = so + vt
1200 = 0 + v . (1200)
1200 = 1200v
v = 1200/1200
v = 1m/s

1m/s para km/h >>> 1 . 3,6 = 3,6 km/h

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