Sunken Ball Puzzle – The boat and the ball

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2 Responses

  1. bharani says:

    increased obviously

  2. Gagan says:

    actually it decreases.
    because the ball is denser than water and so it sinks. It displaces its volume amount of water.
    But then the boat has also become lighter. And the volume of water displaced by the boat earlier was more than the sunken ball accounts for.
    So the overall level decreases.
    write some buoyancy eq’s to see better