What is the required energy for reaching 99.99999c velocity?

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SUMMARY

The discussion focuses on calculating the energy required to accelerate a mass of 1 gram to a velocity of 99.99999c using the principles of relativity. The total energy at rest is defined as E_0=mc^2, while the energy at velocity v is given by E_1=\gamma mc^2, where \gamma is the Lorentz factor calculated as \gamma=\frac{1}{\sqrt{1-(v/c)^2}}. The energy required for the acceleration is determined by the formula ΔW = E_1 - E_0 = (\gamma - 1)mc^2. Additionally, the discussion touches on the energy yield from nuclear fission of Uranium, which is related to mass change via ΔE = Δm c^2.

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So I'm introducing myself to formulas and such. I just am going over time dilation and the Lorentz factor.
Basically now I want to calculate how much energy would be require to bring a mass of 1 (grams) to a velocity of 99.99999c. I'm assuming this is pretty straightforward . correct me if I'm wrong.
 
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maxwilli06 said:
So I'm introducing myself to formulas and such. I just am going over time dilation and the Lorentz factor.
Basically now I want to calculate how much energy would be require to bring a mass of 1 (grams) to a velocity of 99.99999c. I'm assuming this is pretty straightforward . correct me if I'm wrong.

The total energy at rest is E_0=mc^2
The total energy at v is E_1=\gamma mc^2
The energy vraiation you are looking for is \Delta W = E_1-E_0= (\gamma-1)mc^2

where :

\gamma=\frac {1}{\sqrt(1-(v/c)^2)}

and v=.9999999c
 
Last edited:
great thanks.
so to take this further.
How much energy does nuclear fission of Uranium yield?
 
maxwilli06 said:
great thanks.
so to take this further.
How much energy does nuclear fission of Uranium yield?

This question has no realtionship to the previous one. The answer has to do with the amount of mass change:

\Delta E =\Delta m c^2

I bet you knew that already.
 
ya. I'm trying to figure out exactly how much energy derived from nuclear fission of uranium is needed to achieve .99999c
 
maxwilli06 said:
ya. I'm trying to figure out exactly how much energy derived from nuclear fission of uranium is needed to achieve .99999c

You have your answer at post #2
 

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