Initial angular velocity of a circular disc of mass M is ω 1 . Then two small spheres of mass m are attached gently to diametrically opposite points on the edge of the disc. What is the final angula

Question

Initial angular velocity of a circular disc of mass M is ω 1 ​ . Then two small spheres of mass m are attached gently to diametrically opposite points on the edge of the disc. What is the final angular velocity of the disc?

TestHub · Accepted Answer

Angular momentum = conserved 2 1 ​ MR 2 ω 1 ​ = 2 m R 2 ω + 2 1 ​ MR 2 ω ⇒ ω = M + 4 m M ω 1 ​ ​

Physics - Rotation Question with Solution | TestHub

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