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Two trolleys of masses 'm' and '3m' are ...

Two trolleys of masses 'm' and '3m' are connected by a spring. They are compressed and released, they move off in opposite direction and come to rest after covering distances `s_(1)` and `s_(2)` respectively. If the frictional force between trolley and surface is same in both the cases then the ratio of distances `s_(1) : s_(2)` is

A

`1:9`

B

`1:3`

C

`3:1`

D

`9:1`

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The correct Answer is:
D
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