A Solid Sphere of Radius R Rotates About a Diameter $\omega$

question 5

Multiple Choice

A solid sphere of radius R rotates about a diameter with an angular speed $\omega$ . The sphere then collapses under the action of internal forces to a final radius R/2. What is the final angular speed of the sphere?

• A)\(\omega\)/4
• B)\(\omega\)/2
• C)\(\omega\)
• D)2\(\omega\)
• E)4\(\omega\)

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