engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Physics Rotational Motion Rotational Inertia
We have a disc of radius R and mass M with moment of inertia I, now if made disc’s radius 3 times of its initial value and mass 2/3 times, then effect on moment of inertia will be
1
I’ = 3I
2
I’ = 6I
3
I’ = 2I/3
4
None of the above