An earth observer sees an alien ship pass overhead at0.3 c . The ion gun of the

Question

An earth observer sees an alien ship pass overhead at0.3c. The ion gun of the alien ship shoots ions straightahead of the ship at a speed 0.4c relative to the ship.What is the speed of the ions relative to the earth observer?

a. 0.40c
b. 0.63c
c. 0.99c
d. 0.70c
e. 0.79c An earth observer sees an alien ship pass overhead at0.3c. The ion gun of the alien ship shoots ions straightahead of the ship at a speed 0.4c relative to the ship.What is the speed of the ions relative to the earth observer? 0.40c 0.63c 0.99c 0.70c 0.79c

Explanation / Answer

The Relativstic addition of velocities is given by

   

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