a uniform disc and hollow right circular cone have the same formula for their moment of inertia when rotating about the central
axis why is it so?
1 answer:
Answer:
This is as a result that about the central axis a collapsed hollow cone is equivalent to a uniform disc
Explanation:
The integration of the differential mass of the hollow right circular cone yields

and for a uniform disc
I = 1/2πρtr⁴ = 1/2Mr².
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