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Q. 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:

  • (A) 12 kg
  • (B) 60 kg
  • (C) 72 kg
  • (D) 96 kg
  • Correct Answer - Option(B)
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Explanation by: Admin
Volume of water displaced
= (3 x 2 x 0.01) m^3
= 0.06 m^3.
∴ Mass of man = Volume of water displaced x Density of water
= (0.06 x 1000) kg
= 60 kg.

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