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AP Physics C: Mechanics
7.5 Simple and Physical Pendulums
5.6 Newton’s Second Law in Rotational Form
5.4 Rotational Inertia
Multi-Unit
IntermediateMCQConceptual24.9k
Solid sphere and thin hollow spherical shell pivoted at their topmost points.
Solid sphere and thin hollow spherical shell pivoted at their topmost points.
A uniform solid sphere and a thin hollow spherical shell, each having mass \(M\) and radius \(R\), are suspended from frictionless horizontal pivots attached to their topmost points, as shown. When both spheres are displaced by the same small initial angle and released from rest, the hollow shell is observed to oscillate with a longer period than the solid sphere. Which of the following best explains why the hollow spherical shell has a longer oscillation period than the solid sphere?

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