- #1
GreenLRan
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Homework Statement
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?
Homework Equations
v'=(v-u)/(1-u*v/c^2)
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.