Rotation Principles
Rotational motion is most common in gymnastics, like for example a back flip (shown in the picture to the left). (1)"In rotational motion, the body spins around an axis and instead of the acceleration of mass, theres an angular acceleration." The moment of inertia (also known as rotational inertia) plays a key role in the concept of rotational motion. During the back flip (the rotation) there will be no additional moment of force which means no angular acceleration. If the moment of inertia is large, there has to be a large moment of force in order to maintain the same angular acceleration.