Which Book Best Prepares for USAPhO: Halliday and Resnick?

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Halliday and Resnick's "Fundamentals of Physics" is being used by a participant preparing for the USAPhO, with questions about its sufficiency for achieving semi-finalist status. There is a discussion about the differences in difficulty between the "Physics" and "Fundamentals of Physics" versions of the book. Clarification on the specific edition being used is suggested for more tailored advice. The new test, referred to as "F = ma," raises questions about its focus on mechanics. Overall, users are seeking guidance on whether additional resources are necessary for effective preparation.
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I'm using Halliday and Resnick, which is what a member of last year's physics team used. However, should I use something else to supplement this, or can I get semi-finalist status using this book alone?
 
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did I put this in the wrong forum?
 
What's USAPhO? I'm guessing the Physics Olympiad. Which edition of Resnick and Halliday are you using? (Not that I know the answer to your question, but you might want to clarify in order to get more useful answers.) It's been a couple decades since freshman physics, but I do remember that the difficulty of problems differered quite a bit between the "Physics" and "Fundamentals of Physics" versions of R&H.
 
Yeah I have fundamentals of physics, the fifth edition. I hear the new test is called "F = ma." does this mean that it is all mechanics?
 

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