A man weighting 60 kgis standing at the ...

A man weighting 60 kgis standing at the centre of a flat boat and he is 20 m from the shore. He walks 8 cm on the boat towards the shore and then halts. The boat weights 200 kg How far is the from the shore at the end of this time?
[Hints : As the system is free from external force, centre of mass of the system consisting of man and boat must not move.

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The correct Answer is:

13.8 m

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