JEE Main Rotational Motion Revision Notes - PDF Download
A rotation is defined as a circular movement of an object around a center or at a point of rotation. An object which is three-dimensional can always be rotated about an infinite number of imaginary lines which are called rotation axes. If the axis passes through the center of mass of the body, the body is said to be rotating upon itself or spinning. Rotation around an external point, for example, the planet Earth which revolves around the Sun, is called a revolution or an orbital revolution, especially when it is produced by gravity. This axis is termed as Pole.