A circular disc rotates at n rpm. The angular veloci... - Solved MCQs & Answer

3019Civil EngineeringMedium

A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is________?

A2n rpm

Bn rpm

Cn/4 rpm

Dn/2 rpm

Correct answer

D. n/2 rpm

Explanation

The correct answer is n/2 rpm.

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