RE: Weird idea
Haha! It's called physics. You can't get energy for nothing! It's the same thought as hooking up a prop to the driveshaft of a car and pushing it, hoping the prop will generate enough forward force and bring movement along with the wheels. No..
In a world of no friction, it would keep moving but would not be able to accelerate without more energy.
In our world, it would come to a stop fairly quickly.