A circular disc of radius R is removed from a bigger circular disc of radius 2R such that the circumferences of the discs coincide. The centre of mass of the new disc is α /R from the centre of the bi

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A circular disc of radius R is removed from a bigger circular disc of radius 2R such that the circumferences of the discs coincide. The centre of mass of the new disc is α /R from the centre of the bigger disc. The value of α is

TestHub · Accepted Answer

In this question distance of centre of mass of new disc is α R not R α ​ . ​ − 4 3 M ​ α R + 4 M ​ R = 0 ⇒ α = 3 1 ​ ​

Physics - Center of Mass Question with Solution | TestHub

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