A small bead of mass \(m\) and positive charge \(+q\) is constrained to slide without friction along a rigid, horizontal, circular insulating wire of radius \(R\). An external electrostatic arrangement produces an electric potential \(V(\theta)\) along the wire as a function of angular position \(\theta\), as shown in the graph. The bead is launched from \(\theta = 0\) with an initial speed \(v_0\) in the direction of increasing \(\theta\) and has sufficient kinetic energy to complete multiple revolutions. Which of the following statements correctly describes the bead's motion or the forces acting on it as it travels from \(\theta = 0\) to \(\theta = 2\pi\)?