How does circular motion in a cone without gravity work? If I have an object and I let it circle through the inside of a cone (with gravity) the two forces that act on the object are gravity and the support force. The resultant of the two forces lies on the plane of the circular motion and is therefore the provides the centripetal force to keep the object in a circular motion. This I completely understand But what if I do the same thing without gravity? would the object fly out of the cone? Would it continue in a circular path? What are the forces that act on the object and how do they affect the resultant?