depends, but on mine yes
It is on smooth surfaces because the amount of friction is less.
It would not be a perfect answer if I said yes because you did not assume that if the body was moving in vacumn. If its not, like for example it is moving on an ice block on the surface of the earth then the object still has gravity and the air friction acting on it. Even the molecules of the ice's surface attract the surface of that object it is in contact with. So if I say that the object is in space then it would be a incredibly correct answer to say yes, there are no force acting on the body.
smooth surface.
on a smooth surface
jagged
Smooth surface
the tracks
The general tendency is that there is less friction on a smooth surface. The object will eventually slow down (if there are no forces to keep it moving), but the rate of slowing down will be less than on surfaces that provide more friction.
No it does not have to be smooth.
The leaves of Betula populifolia are smooth on the lower surface.
The rough surface is better than the smooth surface for the frictional force to act.
The surface of electric machine are smooth why