Is Traveling at the Speed of Light Impossible?

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Homework Help Overview

The discussion revolves around the concept of traveling at the speed of light, specifically examining the implications of the relativistic mass equation m=mo/sqrt(1-v^2/c^2) and its limits as velocity approaches the speed of light. Participants explore the physical interpretations and mathematical constraints associated with this topic.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • Participants attempt to analyze the limit of the mass equation as velocity approaches the speed of light and question the concept of imaginary mass. There are discussions about the implications of reaching the speed of light and the nature of energy as velocity increases.

Discussion Status

The discussion is active, with participants sharing insights about the relationship between mass, energy, and velocity. Some guidance has been offered regarding the interpretation of mass in the context of energy, and there is a consensus on the idea that energy approaches infinity as velocity nears the speed of light.

Contextual Notes

Participants are engaging with the constraints of relativistic physics and the implications of the equations involved. There are ongoing questions about the physical meaning of singularities and the concept of mass at relativistic speeds.

rojasharma
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use the equation m=mo/sqrt(1-v^2/c^2) to show that traveling at the speed of light or beyond is impossible.
 
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rojasharma said:
use the equation m=mo/sqrt(1-v^2/c^2) to show that traveling at the speed of light or beyond is impossible.

1. what is the limit of that expression whene v--->c?

2. what is an immaginary mass?

think
marco
 
mo is the mass of the object measured in the refrence frame in which it is at rest. m is the mass of the object as measured in a refrence frame moving with speed. in the equation v can never equal to c...it will...be less because of sqrt 1-v2/c2
 
rojasharma said:
mo is the mass of the object measured in the refrence frame in which it is at rest. m is the mass of the object as measured in a refrence frame moving with speed. in the equation v can never equal to c...it will...be less because of sqrt 1-v2/c2

yes bu why u cannot reach c? what kind of singularity u get? what does it mean physically?

ciao
 
It's best to think of the m in your equation as the total energy of the object relative to the rest frame (including the E=m0*c^2 energy). So what happens to total energy as v approaches c?
 
the energy approches infinity?
 
Yessss.
 

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