A boat having a length 3 m and breadth 2...

A boat having a length 3 m and breadth 2 m is floating on a lake. The boat sinks by 1 cm when a man gets on it. The mass of the man is :

60 Kg

72 Kg

12 Kg

128 kg

Text Solution

Verified by Experts

The correct Answer is:

According to law of floatation,
Weight of man = wt. of extra water displaced by the boat
mg=V.pg
`thereforemg=(3xx2xx1/100)xx10^(3)xxg`
`rArrm=60kg`
Hence the correct choice is (a).

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