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There is a boat of mass 460 kg and lengt...

There is a boat of mass `460 kg` and length 10 m on a pond having two men of masses `60 kg` and `80 kg` respectively. The two men exchange their position, while initially the both were at opposite ends. If the displacement of the boat after this process is `(1)/(N) m`, then value N is.

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`(S_(COM) = 60 (10 - x) + 80 ( -10 - x) + 460 (-x))/(60 + 80 + 460) = 0`
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