1. Mar 12, 2008 #1

   rojasharma

   

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

    

   rojasharma, Mar 12, 2008
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3. Mar 12, 2008 #2

   Marco_84

   

   1. what is the limit of that expression whene v--->c???
   
   2. what is an immaginary mass???
   
   think
   marco

    

   Marco_84, Mar 12, 2008
4. Mar 12, 2008 #3

   rojasharma

   

   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, Mar 12, 2008
5. Mar 12, 2008 #4

   Marco_84

   

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

    

   Marco_84, Mar 12, 2008
6. Mar 12, 2008 #5

   Dick

   

   Science Advisor

   Homework Helper

   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?

    

   Dick, Mar 12, 2008
7. Mar 12, 2008 #6

   rojasharma

   

   the energy approches infinity?

    

   rojasharma, Mar 12, 2008
8. Mar 12, 2008 #7

   Dick

   

   Science Advisor

   Homework Helper

   Yessss.

    

   Dick, Mar 12, 2008

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