Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element

A subterranean drilling system, comprising:

• a drill string;
• a rotary drill bit coupled to the drill string, the rotary drill bit comprising:
• a bit body;
• a first cutting element coupled to the bit body, the first cutting element being structured to rotate in response to torque applied to the cutting element;
• and
• a second cutting element coupled to the bit body;
• the second cutting element being structured to remain in a fixed position relative to the bit body;
• a cam assembly coupled to the drill string, the cam assembly comprising a cam surface;
• a cam follower assembly in contact with the cam surface of the cam assembly;
• and
• a torque-applying structure coupled to the cam follower assembly, the torque-applying structure being configured to apply torque to the first cutting element in response to relative rotation between the cam assembly and the cam follower assembly.