Two persons of masses 55 kg and 65 kg re...

Two persons of masses `55 kg` and `65 kg` respectively are at the opposite ends of a boat. The length of the boat is `3.0 m` and weights `100 kg`. The `55 kg` man walks up to the `65 kg` man and sits with him. If the boat is in still water the centre of mass of the system shifts by.

`3 m`

`2.3 m`

zero

`0.75 m`

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