Solving a Force Problem: Tips and Tricks for Finding the Correct Answer

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The discussion revolves around solving a force problem where the original poster is confused about their solution compared to the book's answer, which is option A. They express uncertainty about any potential errors in their approach and seek input from others. After some time, the poster confirms that they have resolved the issue and found the correct answer. The conversation highlights the importance of collaboration in problem-solving within physics. Ultimately, the problem was clarified with the help of the community.
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The problem is as such:



Attempt:



But the book says answer is option A

Thank you all in advance.
 
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I do not see any error in the solution. Perhaps somebody else will.
 
OK voko thank's I will wait for other replys.
 
Thank you very much friends. I got the answer. Problem has been cleared.
 

Thread 'Magnitude of buoyant force in fluids of different densities'

The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?
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