Respostas

2014-03-18T16:10:01-03:00
S=60 metros
t=8 segundos
vm=x


vm=60/8

vm=7,8m/s <incorreto

7,5m/s
2014-03-18T16:11:48-03:00
S = 60m
t = 8s

Vm = S/t
Vm = 60/8
Vm = 7,5m/s