center of mass

[pringless]

A circular hole of diameter 11.1 cm is cut out of a uniform square of sheet metal having sides 22.2 cm, as in the figure. What is the distance between the center of mass and the center of the sqaure?

i need some serious help with cm, i dont get this at all.

[himanshu121]

U might consider The removed part as negative mass

[himanshu121]

Where is the circular hole located (no fig shown)

If it is removed from centre than the CM wont change

[pringless]

top right corner of the sqaure

[himanshu121]

since considering Centre of square as origin

X_{cm}= - \frac{\pi 11.1}{32}
Y_{cm}= - \frac{\pi 11.1}{32}

[o)]

sookh kar kaanta ho chuka hoon

[jakeman4]

where did the 32 come from?