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

Two spaceships approach the Earth from opposite directions. According to an observer on the Earth, ship A is moving at a speed of .753c and ship B at a speed of .851c. What is the speed of ship A as observed from ship B? Of ship B as observed from ship A?

2. Relevant equations

v'=(v-u)/(1-u*v/c^2)

3. The attempt at a solution

For the speed of ship A with respect to B I tried

(.851c-.753c)/(1-.851c*.753c/c^2) = .2728c

For the speed of ship B with respect to A i tried

(.851c+.753c)/(1+.851c*.753c/c^2) = .9776c

I am not sure of the correct answers, However I'm pretty sure these are wrong. Thanks.

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# Homework Help: Lorentz/velocity transformation

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