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jbriggs444
Science Advisor
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Relative velocities in special relativy are always equal and opposite (assuming that one has aligned the respective coordinate systems with the direction of the relative velocity).greg997 said:thank you jbriggs444 for confirmation.
How can i calculate velocity of planet B in spaceships reference? and the distance between these two planets from spaceships reference?
The speed of the rocket in the planet frame is the same as the speed of the planet in the rocket frame.