never. according to newton 2nd law if there is no friction the body will never change its status.
An object can be at rest with or without friction. An object floating in outer space can be at rest. An object that is glued to the floor can also be at rest.
Static friction.
Perhaps you mean friction or inertia.
stiction
Usually gravity and friction.
the static friction is the force of friction that keep an object at rest from movie and kinetic friction is the force of friction that tries to start a moving object
It provides static friction, so the object cannot move until the static friction is overcome.
Friction.
Usually gravity and friction.
To move an object that is at rest, you must overcome all other forces that are acting on the object, such as friction.
static
You must overcome static friction.