A Uniform Sphere of Radius R Rotates About a Diameter

question 51

Multiple Choice

A uniform sphere of radius R rotates about a diameter with angular momentum of magnitude L.Under the action of internal forces the sphere collapses to a uniform sphere of radius R/2.The magnitude of its new angular momentum is:

• A)L/4
• B)L/2
• C)L
• D)2L
• E)4L

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