A Phonograph Turntable Is Made in the Shape of a Circular

question 70

Multiple Choice

A phonograph turntable is made in the shape of a circular disk of radius 6 inches with density function $p ( x , y ) = \sqrt { x ^ { 2 } + y ^ { 2 } }$ . Find the polar moment of inertia $I _ { 0 }$ of the disk.

• A)2945.4\(\pi\)
• B)3110.4\(\pi\)
• C)3245.4\(\pi\)
• D)3362.4\(\pi\)
• E)3495.4\(\pi\)
• F)3560.4\(\pi\)
• G)3632.4\(\pi\)
• H)3775.4\(\pi\)

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