Respostas

2014-04-12T11:20:13-03:00
Vm = Δs
        Δt

vm = 40
        20

vm = 2 m/s
1 5 1
2014-04-12T11:24:14-03:00
Δs: 20s    Δt:40m

Vm: ΔS/ΔT
Vm: 40/20
VM:2m/s