APFIVE Rotational Inertia of a Disk with a Hole
A uniform thin disk of mass M and radius R has a small hole of radius R/4 drilled in it at a distance R/2 from the center. What is the approximate percentage decrease in the rotational inertia about an axis through the center perpendicular to the disk?
A
1.6%
B
3.5%
C
6.25%
D
0.4%
Question Leaderboard
Not enough data yet to show leaderboard.