A disc of radis R is cut out from a larger disc of radius 2R in such a way that the edge of the hole touches the edge of the disc. Locate the centre of mass of the residual disc.

Options

A. at `(2R)/(3)` from center of the original disc away from the center of the hole
B. at `( R)/(3)` from center of the original disc away from the center of the hole
C. at the center of the original disc
D. at the center of the hole

Answer

B