(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The Millenia is catching up to the Galaxa at a rate of 0.55c when the captian of the Millenia decides its time to fire a missle. He uses a laser range finder to determine the distance to Galaxa and then he fires a missle that is moving at a speed of 0.45c.

What speed does the Galaxa measure for a) the laser beam and b) the missle as they both approch the starship

2. Relevant equations

I belive i would be using the relativistic velocity transformation formula for this problem however I dont understand how it works.

v= V1+V2/(1+ V1V2/c^2)

Would i do the equation and solve for a value for the laser beam and then use that to find the value for the missle?

3. The attempt at a solution

I tried using the known values for V1 and V2 but i got an answer of 1 and i dont know if that makes sense.

Thank you In advance for any help :)

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Velocites in Different Reference Frames

Can you offer guidance or do you also need help?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**