Moment of inertia is a physical property that measures the tendency of an object to resist changes in its rotational motion. It is dependent on the mass and distribution of mass of an object.
The moment of inertia helps us understand how an object will rotate in response to an external force. It is crucial in the design and analysis of systems such as cars, airplanes, and satellites.
The moment of inertia can be calculated by summing up the products of mass and distance squared for each individual component of the system. Alternatively, it can also be calculated using mathematical equations for specific shapes such as spheres, cylinders, and rods.
The moment of inertia is affected by the mass and distribution of mass of the system. Objects with more mass and mass concentrated farther from the axis of rotation will have a larger moment of inertia.
No, the moment of inertia is always a positive value because it represents the resistance to change in rotational motion. A negative moment of inertia would imply that the system would accelerate without an external force, which is not physically possible.
