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Physics
Special Relativity
Velocity and Relative Velocity
2 identical spacecraft leave Earth at the same velocity but in different directions. If the velocity of each spacecraft was 0.84c, what value would an observer on Earth obtain when he calculated their relative velocities?
1 answer
speed(earth)= (.84c+.84c)/(1+.84^2)= .985c I assumed the directions were opposite.
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