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34.) A disc is rotating with angular velocity o. If a
irchild sits on it, what is conserved ? [2002
(a) Linear momentum
b ) Angular momentum
1800V
Kinetic energy
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L (d) Moment of inertja
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Answer:
b)Angular momentum ..... KE
Explanation:
IT cannot be linear momentum since the magnitude of linear momentum is same but the direction changes
and inertia is a tendency to resist change
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