Seven identical homogeneous bricks, each of length $L$ , are arranged as shown in figure. Each brick is displaced with respect to the one in contacts by $\frac{L}{{10}}$ . Calculate the $x$-co-ordinate of the centre of mass of this system relative to the origin $O$ as shown
Seven identical homogeneous bricks, each of length $L$ , are arranged as shown in figure. Each brick is displaced with respect to the one in contacts by $\frac{L}{{10}}$ . Calculate the $x$-co-ordinate of the centre of mass of this system relative to the origin $O$ as shown
- A
$\frac{{2L}}{5}$
- B
$\frac{{7L}}{10}$
- C
$\frac{{7L}}{21}$
- D
$\frac{{22L}}{35}$
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- [JEE MAIN 2022]
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