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Why did Einstein use c in his derivation?

Why did Einstein use c in his derivation?

Grade:12

2 Answers

Vikas TU
14149 Points
9 years ago
Whoa! Qstn!
 
In the equation e=mc2 the c stands for “constant.” The speed of light in vacuum is constant. Therefore c represents the speed of light in vacuum. 
C is not to be confused with c2 ( c squared.) C2 is what we get when we square the speed of light in vacuum, therefore finding the velocity of light in vacuum. (8.0 x 10^8 meters/second) 
The E is energy. The m is mass. 
By using this equation Einstein showed that no mass can accelerate to the speed of light. 
Short answer: C stands for constant which in this case is the speed of light in vacuum. No need to turn it into a bigger deal than it is : )
noogler
489 Points
8 years ago
@ vikas yadav  plz check ur ans again 
speed of light in vaccum is 3X108m/s

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