Poss Textbook Error Concerning Momentum

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Homework Help Overview

The discussion revolves around a potential error in a textbook problem related to momentum, specifically concerning the statement of the velocity vector and its components. Participants are examining the implications of missing information in the problem statement.

Discussion Character

  • Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants are questioning the completeness of the problem statement, particularly regarding the absence of velocity components. There are discussions about whether the problem might be related to another question that provides necessary angle measurements. Some participants are also considering the relativistic nature of the speed mentioned.

Discussion Status

The discussion is ongoing, with participants actively exploring the implications of the potential error in the textbook. Some have suggested that the problem may contain significant typos, while others are confirming their suspicions about the missing information.

Contextual Notes

There is a mention of the problem's speed values being inconsistent, which raises further questions about the accuracy of the textbook. Participants note that the text has multiple errors, which may affect the interpretation of the problem.

MariettaBlau
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From Matter & Interactions Volume 3:

Screen_Shot_2014_07_22_at_1_25_24_PM.png


Am I correct that there is something wrong with the statement of the velocity vector here? The components are missing in the statement of the problem, yes?
 
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Since the proscribed answer clearly uses information that cannot be derived from the information given, that would definitely be a case. A very large typo. :)
 
Yea that doesn't look right to me. Either components or phi,theta measurements. Is it possible that this question is a subset of another question that did give angle measurements? Or maybe it's an entirely different solution, as the problem statement says the velocity is 2E7, whereas the solution says the speed is 3.7E7.

This looks relativistic, is that speed relative to a moving observer?
 
Thank you both for the replies. I just wanted to be sure. It was not a subset of another question. Just an error. This text seems to have quite a few unfortunately.
 

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