Respostas

2014-05-28T18:54:33-03:00
V = d
      t

70 = d
        2

d = 70.2
d = 140 km
2 3 2
2014-05-28T18:56:13-03:00
Vm=  Δs/Δt
70=Δs/2
Δs= 140km

1 5 1