Rotational inertia, also known as the moment of inertia, is a measure of an object's resistance to changes in its rotational motion. It depends not only on the mass of the object but also on how that mass is distributed relative to the axis of rotation. This property plays a crucial role in determining how much torque is needed to achieve a desired angular acceleration.
congrats on reading the definition of Rotational inertia. now let's actually learn it.