(adsbygoogle = window.adsbygoogle || []).push({}); Fun Relativity Question :)

1. The problem statement, all variables and given/known data

two spaceships, A and B, are moving relative to the earth with speeds 4c/5 in opposite directions. What is the speed of the spaceship A according to an observer on B? According to an observer on B, how much does the separation of the spaceships increase in time of one second, as measured on his clock? According to an observer on the earth, how much does the separation increase in a time of one second as measured on his clock?

2. Relevant equations

lorentz transformation equations, v =v'+ u/(1+uv'/c^2)

3. The attempt at a solution

i used the velocity equation listed and plugged in the velocities for v' and u which were both 4c/5. i have no idea what to do for the other two questions. HELP please

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# Homework Help: Fun Relativity Question

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