A uniform sphere of radius R rotates about a diameter with an angular momentum of magnitude L. Under the action of internal forces the spher

A uniform sphere of radius R rotates about a diameter with an 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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  1. Answer: C. L

    Explanation:

    Internal forces are forces that are produced from external forces which are acting on structure members. Example of such members include beams, and columns. There are three types of internal forces which are, axial, shear and moment.

    Angular momentum is the rotational or angular equivalent of linear momentum. It is a conserved quantity.

    As angular momentum is a conserved quantity, internal forces are unable to change it.

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