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To form a jeep, two squares of side length `10cm` & `20cm` and two circles of perimeter `15cm` each are connected as shown. The centre of bigger square is at origin and `x-y` axes are as shown. The `x` coordinate of centre of mass of this model is `:-`
image
A. `x=-5cm`
B. `x=-9cm`
C. `x=-3cm`
D. `x=2cm`

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Correct Answer - A
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`x=(80xx0+40xx(-15)+15xx(-15)+15xx5)/(80+40+15+15)`
`=-5cm`

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