Two trolleys of mass m and 3 m are attac...

Two trolleys of mass `m` and `3 m` are attached by a spring. The spring was compressed and then released , they move off in opposite direction and comes to rest after covering distances `s_(1)` and `s_(2)` respectively. Assuming the coefficient of friction to be uniform , the ratio of distances `s_(1) : s_(2)` is

`1:9`

`1:3`

`3:1`

`9:1`

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