Answer:
Rotation of earth about its own axis create the cycle of day and night. Motion of wheel, gears, motors, etc. is rotational motion. Motion of the blades of the helicopter is also rotatory motion. A door, swiveling on its hinges as you open or close it. From everyday life that rotational motion is also very important and that many objects that move have both translation and rotation. The angular position of a rotating body is the angle the body has rotated through in a fixed coordinate system, which serves as a frame of reference.
Explanation:
