The length of wire, when M(1) is hung fr...

The length of wire, when `M_(1)` is hung from it, is `l_(1)` and is `l_(2)` with both `M_(1)` and `M_(2)` hanging. The natural length of wire is :-

`(M_1)/(M_2)(l_1-l_2)+l_1`

`(M_2l_1-M_1l_2)/(M_1+M_2)`

`(l_1+l_2)/(2)`

`sqrt(l_1l_2)`

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