alleryTwo bodies have the same angular momentum L. The one with the LARGER moment of inertia has:
ALarger angular speed
BSmaller angular speed
CLarger rotational KE
DSame rotational KE
Answer & Solution
Correct answer: B. Smaller angular speed
1. L = I ω, so ω = L / I. Larger I ⇒ smaller ω.
2. KE_rot = L² / (2 I). Larger I ⇒ smaller rotational KE.
3. So (B) is the only correct choice; the larger-I body has lower ω AND lower KE.
_Source: syllabus Physics Ch 6 §6.10 (KE-L relation)_
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