Respostas

2014-02-11T17:45:10-02:00

  Vm= Δs/Δt

vm= 50/4

vm=12,5 m/s

16 4 16
2014-02-11T17:45:26-02:00
Olá
vm=v/t
v=50m
t=4s
vm=50/4=12,5 m/s
11 4 11