Question

difference between rotational motion and circular motion

Answer 1

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Ans:-
The main difference between these types of motion is that circular motionis a special case of rotational motion, where the distance between the body's centre of mass and the axis of rotationremains fixed. Rotational motion is based around the idea of rotation of a body about its center of mass.

Answer 2

Circular motion is the motion of a body around another body in a circular orbit. For example, motion of moon around earth in a circular orbit is an example of circular motion. If you tie a stone with string and start moving it around yourself, the stone is said to be in a circular motion. On the other hand, if you are moving around on an axis you are said to be in a rotational motion. Therefore, rotational motion is described as one around an axis. If a toy train is moving on a circular track, it is said to have a circular motion but if you are driving your car on a circular track, it has circular motion and also rotational motion as the tires of the car are moving around an axis which is its axle.

You must have seen kids spinning their beyblades. These objects run furiously around an axis and thus have a rotational motion. If a rotating object does not move from its place, it only has rotational motion but if it also moves in an orbit, it is said to have both types of motion. Earth has both circular as well as rotational motion when moving in an orbit around the sun. Circular motion it is which causes day and nights on earth whereas rotational motion causes weathers around the year.

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