ABC is a part of ring having radius R2 and ADC is a part of disc having inner radius R1 and outer R2. Part ABC and ADC have same mass. Then center of mass will be located, from the centre O.
A
(R2−R1)(2R1+R2)3π(R1+R2) (above)
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B
(R2−R1)(2R1+R2)3π(R1+R2) (below)
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C
2R1+R23π(above)
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D
2R1+R23π(below)
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Solution
The correct option is B(R2−R1)(2R1+R2)3π(R1+R2) (below)