- #1
Wout Veltman
- 3
- 0
From Chris' perspective Bob is traveling with 1.5*108 m/s in direction a. Angelica is also traveling with 2.4*108 m/s in direction a.
From Bob's perspective Chris is traveling with 1.5*108 m/s in direction b (The opposite of x). Angelica is traveling with 1.5*108 m/s in direction a.
They all have a mass of 1
I am pretty sure these numbers are right. I used w = (u+v)/(1+(u*v)/(c2)) To calculate the relative speeds.
I used the calculation in the picture to calculate the Ek of Bob. I also calculated the Ek of Angelica, all from chris' perspective. Now the outcome that I was expecting was that Bob's Ek would be half of Angelica's Ek when looking from Chris' perspective. Because Angelica is also traveling with 1.5*108 m/s when measured from Bob's perspective. Why does this not count up?
I am sorry if a skipped a few vital steps. All of my special relativity knowledge comes from self-studying. We don't get this in school.
Thank you in advance.
From Bob's perspective Chris is traveling with 1.5*108 m/s in direction b (The opposite of x). Angelica is traveling with 1.5*108 m/s in direction a.
They all have a mass of 1
I am pretty sure these numbers are right. I used w = (u+v)/(1+(u*v)/(c2)) To calculate the relative speeds.
I used the calculation in the picture to calculate the Ek of Bob. I also calculated the Ek of Angelica, all from chris' perspective. Now the outcome that I was expecting was that Bob's Ek would be half of Angelica's Ek when looking from Chris' perspective. Because Angelica is also traveling with 1.5*108 m/s when measured from Bob's perspective. Why does this not count up?
I am sorry if a skipped a few vital steps. All of my special relativity knowledge comes from self-studying. We don't get this in school.
Thank you in advance.
Last edited: