1. The problem statement, all variables and given/known data A uniform disc A of radius 2m is cut as shown in the figure. The cut out is also a disc of radius 1m. O is the centre of gravity of disc A before cutting and O' is its centre of gravity after cutting. Find the distance between O and O' 2. Relevant equations 3. The attempt at a solution I know how to find the CG of disc A and the CG of the new disc respectively.. But i don't know how to find out the CG of the newly cut disc A... I don't know what approach should I use in this question Can anyone help me please?