Question

Moment of inertia of a solid sphere about its diameter 25 kgm2 find its moment of inertia about the tangent sol

Answer 1

First 2/5 mr sq. =25 . find mr sq. and place it in 7/5 mr sq. and answer is 87.5 kgm2
sq.=square

Answer 2

Rotational inertia is important in almost all physics problems that involve mass in rotational motion. It is used to calculate angular momentum and allows us to explain (via conservation of angular momentum) how rotational motion changes when the distribution of mass changes.