Answer:
Taking the direction of the spaceship as the x-axis.
And the direction of the missile perpendicular to the spaceship's motion as the y-axis.
Velocity of the missile as measured from the earth = (0.8cî + 0.48cj)
Speed of the missile relative to Earth = 0.93c
Explanation:
The solution to this question is presented in the attached image to this answer.
