TRAJECTORY OF A ROLLING OBJECT ON A ROTATING DISC

In this paper, we survey on the motion of a rolling object on a turntable exhibiting trajectories without being expelled from the disc like revolving in a stable circular orbit or coming toward the center of the disc that depends on initial conditions and range for observation of a specific trajectory is limited. Based on references frequency of the turntable and rolling friction force are the most important parameters affecting on this phenomenon. According to our experiments both of frequency of the turntable and rolling friction force can effect on velocity and mass center velocity of the rolling object that in some of situations make the rolling object come toward the center.