Topic about masses (modern physics)

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Homework Help Overview

The discussion revolves around a question in modern physics concerning the mass of a system composed of multiple particles. The original poster is attempting to understand whether the total mass of a freely moving system can be equated to the sum of the individual masses of its particles.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster questions the validity of the statement regarding the total mass of a system and seeks hints to prove that the answer is no. Other participants suggest considering counterexamples, such as photons, to challenge the statement.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the problem. Some guidance has been offered regarding the use of counterexamples, but no consensus has been reached on the correct approach or conclusion.

Contextual Notes

There is uncertainty regarding the specific types of particles involved, as the original poster mentions that their instructor did not clarify this aspect. This lack of information may influence the discussion and the examples considered.

tarekkkkk
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Homework Statement


If a system is composed of n particles that are freely moving is M(system)=M(total masses of particles)(sum)


Homework Equations





The Attempt at a Solution



of course no , but these particles isn't photons or electrons my doctor didnt exacly told me what are they so how can i proove the answer is no PLEASE GIVE ME HINTS
 
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What is the rest of the question?
 
this is the question >>
 
If you think the answer is no, then you can pick whatever particle type you want and answer to show the statement is wrong. You just want a counterexample. Photons are a good choice.
 
Last edited:
thank you, you really helped me how to think about the problem...
 

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