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Spaceships X and Y are launched simultaneously with a speed of 0.8c, with X moving along...

Spaceships X and Y are launched simultaneously with a speed of 0.8c, with X moving along the +x axis and Y moving along the +y axis. Consider the motion of Y as seen by someone on X. (a) What is the total velocity of Y measured by the observer on X? (b) What angle (in degrees) does Y’s motion make with respect to the x-axis as measured by the observer on X?

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Answer #1

We will consider particle moving along X-axis to be moving frame and calculate velocity components of particle moving along Y-axis in that frame.

I will attach the solution.

If any doubt, feel free to ask.

P.S. : A feedback is much appreciated.

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