A boat having length 2m and width 1m is floating in a lake. When a man stands on the boat, it is depressed by 3cm. The mass of the man is:
A
50kg
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B
55kg
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C
60kg
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D
70kg
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Solution
The correct option is C60kg The mass of the man should he equal to the mass of the water displaced when the man stansd on the boat. Mass of man =2×1×3100×1000kg =60kgs