We know a body in uniform linear motion will continue to move with uniform velocity unless any external force acts on it. Similarly, a body rotating with uniform angular velocity will continue to rotate with uniform angular velocity unless any external torque acts on it.
Occupants inside a body in uniform linear motion will experience an "artificial gravity" if an external force accelerates it, but the artificial gravity will turn off the moment the external force disappears.
But in the case of a rotating body, if I understand it right, the "artifical gravity" is present (due to centrifugal force) even when no external torque is acting on it.
In that case, since the body maintains its angular velocity in the absence of any external torque, is it correct to say that a person sitting inside a spinning spaceship will experience "artifical gravity" forever, without any intervention or additional torque required?
Assume there is just that one person sitting there, there are no other people who are walking about or moving, etc. Also, the spaceship is in empty space with no gravitational influence from any other body.
It seems that we are getting the artificial gravity "for free" without having to keep supplying an external torque, unlike in the linear case, where the artificial gravity lasted only as long as there was external force.