An object with Fnet = 0 moving at a constant velocity. FBD Diagram

Question

I don't understand how this is possible, if some one could please explain it to me and if possible draw a quick diagram on an external site. (i.e. Sumopaint )

Answer 1

If there is no net force, there is no net acceleration and velocity is constant.

Force = rate of change of momentum

F = m A

if m is constant

Answer 2

You're confusing acceleration and velocity. Acceleration is a CHANGE in velocity.