A circular plate of diameter d is kept in contact with a square plate of edge d as shown in figure. The densit of the material and the thickness are same
. Everywhere. The centre of mass of the composite system will be

Options

A. inside the circular plate
B. inside hte square plate
C. at the point of contact
D. outside the system

Answer

B

Explanation

Area of circle, `pi/4a^(2)` = A_(1) , area of square = a^(2) = A_(2)`. Since,
`A_(2) gt A_(1)` Center of mass will lie inside the square plate.