Physics, 17.07.2020 23:01, LouieHBK

Two spaceships are observed from earth to be approaching each other along a straight line. Ship A moves at 0.40c relative to the earth observer, while ship B moves at 0.60c relative to the same observer. What speed does the captain of ship A report for the speed of ship B

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Two spaceships are observed from earth to be approaching each other along a straight line. Ship A mo...