Traveling Twice Speed of Light: Theory and Calculation

[Interested user]

How did you find PF?

Google search

I found a theory on a previous thread, “if a vessel, V is traveling to a fixed point, M along with Y. If v was traveling at a speed a little bit less then the speed of light and so was Y, wouldn’t V be traveling at twice the speed of light relative to Y?” i also saw the equation, ν+υ over 1+νυ/c^2. I used this equation to test the theory and it seemed that the theory made perfect sense yet I still have my doubts if my calculations are correct. I would very much appreciate it if anyone could give me some information on the topic. I have just started learning about physics and I would very much like to learn more.

 

[russ_watters]

How did you find PF?: Google search

I found a theory on a previous thread, “if a vessel, V is traveling to a fixed point, M along with Y. If v was traveling at a speed a little bit less then the speed of light and so was Y, wouldn’t V be traveling at twice the speed of light relative to Y?” i also saw the equation, ν+υ over 1+νυ/c^2. I used this equation to test the theory and it seemed that the theory made perfect sense yet I still have my doubts if my calculations are correct. I would very much appreciate it if anyone could give me some information on the topic. I have just started learning about physics and I would very much like to learn more.

Welcome to PF! We have a Relativity sub-forum where you can learn about it.

 

[Interested user]

Welcome to PF! We have a Relativity sub-forum where you can learn about it.

thanks!

 

[Interested user]

About the tittle of this thread, the equation I used to measure the speed that V would be traveling at relative to Y would be: ν+υ over 1+νυ/c∧2

 

[berkeman]

About the tittle of this thread, the equation I used to measure the speed that V would be traveling at relative to Y would be: ν+υ over 1+νυ/c∧2

Welcome to PhysicsForums.

One tip -- If you click on the "LaTeX Guide" link in the lower left of the Edit box, you can learn how to use LaTeX to post math equations at PF. That helps to make the threads much more readable. Enjoy!

 

[Interested user]

About the tittle of this thread, the equation I used to measure the speed that V would be traveling at relative to Y would be: ν+υ over 1+νυ/c∧2

Welcome to PF! We have a Relativity sub-forum where you can learn about it.

Wow! Your website is amazing and its amazing what you can accomplish with your equipment alone! If I were you, I would definitely keep posting on your website!

 

[russ_watters]

Thanks, yeah unfortunately I've let the website updates lag about 5yrs...

 

[Interested user]

Thanks, yeah unfortunately I've let the website updates lag about 5yrs...

Either way, I love what your doing and I think that its a great hobby/activity to participate in.

 

[Interested user]

About this theory, if 2 objects are traveling at different speeds, making it so that one object is traveling at a speed 2c, what would happen if there were 3 vessels? Would it make the equation for speed calculation relative to y, y+v+n (n= the third object)? Would this result in V traveling at 3c relative to n? Please let me know.

 

[berkeman]

About this theory, if 2 objects are traveling at different speeds, making it so that one object is traveling at a speed 2c, what would happen if there were 3 vessels? Would it make the equation for speed calculation relative to y, y+v+n (n= the third object)? Would this result in V traveling at 3c relative to n? Please let me know.

Remember that the New Member Introductions forum is just for brief introductions, not for detailed questions.

Have a look at this Insights article to help you understand why it is c in all reference frames, not 2c or 3c.

https://www.physicsforums.com/insights/speed-light-frames-reference/

This introductory thread is now closed.