A 50 kg man is standing on a flat boat a...

A 50 kg man is standing on a flat boat at rest in a river.He moves 5 m to north and halts.If the boat has a mass of 450 kg,then the boat will moves through a distance :

`0.5 m ` to the south

`(5//9) m to the south

`o.5` m to the north

zero

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