Cisimlerin Ortak Kütle Merkezinin Bulunması

7. Düzgün ve türdeş telden yapılan O merkezli çember ve ikizkenar üçgen biçimindeki cisimler şekildeki gibi birleştirilmiştir.

Buna göre, bu cisimlerin ortak kütle merkezinin O noktasına uzaklığı kaç $r$'dir?

($\pi = 3$ alınız; $\sin 53^{\circ} = 0,8$; $\cos 53^{\circ} = 0,6$)

A) 1

B) 2

C) $\frac{5}{2}$

D) 3

E) 4

Soruda görsel içerik var: The image shows a geometric arrangement formed by thin wires. On the left, there is an isosceles triangle with its base oriented vertically. The height of this triangle is $8r$ and it has angles of $53^{\circ}$ marked. The triangle is tangent to a circle on the right at the midpoint of its base. The circle has its center at point $O$ and a radius of $6r$. A dashed horizontal axis passes through the vertex of the triangle and the center of the circle $O$. There are handwritten annotations on the image, including numbers like '10', '32r', '36r', and arrows pointing downwards indicating forces or weight vectors.