Question

18. Two spaceships are traveling in the same direction. With respect to an inertial frame of reference, spaceship A has a speed of 0.900c. With respect to the same inertial frame, spaceship B has a speed of 0.500c. Find the speed vAB of spaceship A relative to spaceship B.

Answer 1

`v_(A) -v_(B)=v_(AB)\\v_(AB) =0.9c-0.5c\\v_(AB)=0.4c`

Step-by-step explanation:

Because the spaceships are traveling in the same direction, you should subtract the speed of spaceship A from the speed of spaceship B in order to calculate
`v_(AB)`.