Respostas

2013-07-11T17:04:34-03:00
Vp=Vq
-8+3*t=-3+0,5*t
3t-0,5t=-3+8
2,5t=5
t=5/2,5
t=2 s.
2013-07-12T15:38:47-03:00
As velocidades coincidem quando Vp=Vq

Vp=Vq
-8+3t=-3+0,5t
-8+3=-3t+0,5t
-5=-2,5t
5=2,5t
t=2s