Relavtivity Question - Unit Needed

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The discussion centers on determining the appropriate unit for calculating velocity in a relativistic context. Given the relative time (T) of 9 years and stationary time (To) of 2 years, the velocity (U) can be expressed as a ratio of v to c, where c is the speed of light. Participants suggest using the speed of light as a unit or converting it to meters per second (m/s) using the value c = 3e8 m/s. The key takeaway is that the unit for velocity can be derived from the relationship between T and To, emphasizing the importance of the speed of light in these calculations. Understanding these units is crucial for accurate relativistic velocity computations.
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1. The problem

I need to know what unit I would use for my calculated velocity?

2. Relevant Information

T (Relative Time) = 9 years
To (Stationary Time) = 2 years
U (Velocity) = ?

Solution?

What unit would I use for the velocity received?
 
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TheController said:
1. The problem

I need to know what unit I would use for my calculated velocity?

2. Relevant Information

T (Relative Time) = 9 years
To (Stationary Time) = 2 years
U (Velocity) = ?

Solution?

What unit would I use for the velocity received?

The factor relating T to To will contain the ratio v/c, so you can use the speed of light as your unit, or you can say c = 3e8m/s and get the answer in m/s.

Etc.
 

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