ANS:C - rotary and translatory

1. Rotary Motion: The primary motion of a bicycle wheel is rotary. It spins around its axis, which is the axle attached to the bicycle frame. This rotary motion allows the bicycle to move forward when force is applied to the pedals.
2. Translatory Motion: In addition to its rotary motion, a bicycle wheel also undergoes translatory motion. As the bicycle moves forward, the wheel translates through space, covering distance along the ground. The combination of rotary and translatory motion allows the bicycle to move efficiently.