A circular plate of uniform thickness has a diameter of 28 cm. A circular portion of diameter 21 cm is removed from the plate as shown . O is the center of mass of complete plate. The position of center of mass of remaining portion will shift towards left from O by (in cm)
C1 is the center of mass of cut portion and C2 that of remaining portion. We have to find x2.
Mass will be proportional to area. So mass of the whole disc is
Mass of cut portion
Mass of the remaining portion
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