Physics · System of Particles and Rotational Motion
A uniform square plate has a small piece Q of an irregular shape removed from an off-center location and glued exactly at the geometric center of the plate, leaving a hole behind. The moment of inertia of the modified plate about the central z-axis perpendicular to its plane is:
- 1Changed in an unpredictable manner
- 2Unchanged
- 3Decreased✓
- 4Increased
Correct answer
Decreased
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