Monday, December 6, 2010

Boat and Anchor - One Puzzle a Day - Puzzle Buddies

Puzzle:
A fisherman is sitting in his boat in the center of a small lake. He throws his anchor into the water. Does the water level rise, fall or stay the same?

Solution:
When the anchor is in the boat, the water displaced is equal to the weight of the anchor. When the anchor is dropped in the water, the water displaced is equal to the volume of the anchor. Since the anchor is denser than water, its weight is more than its volume as compared to water. Hence, it displaces less water when it is thrown in the lake. Thus, the water level falls.

Winner: Vinay

6 comments:

  1. It won't rise as the water displaced by the boat remains same.

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  2. Did the fisherman fart after he dropped the anchor? Fart could have displaced some water on shore.

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  3. This comment has been removed by the author.

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