Physics, 17.03.2020 03:24 martinez6221

An armada of spaceships that is 1.60 ly long (in its rest frame) moves with speed 0.800c relative to the ground station in frame S. A messenger travels from the rear of the armada to the front with a speed of 0.910c relative to S. How long does the trip take as measured (a) in the messenger's rest frame, (b) in the armada's rest frame, and (c) by an observer in frame S?

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An armada of spaceships that is 1.60 ly long (in its rest frame) moves with speed 0.800c relative to...