Question

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 `:-`

A. `x=-5cm`
B. `x=-9cm`
C. `x=-3cm`
D. `x=2cm`

Answer 1

Correct Answer - A
Ans (1)
`x=(80xx0+40xx(-15)+15xx(-15)+15xx5)/(80+40+15+15)`
`=-5cm`