A spacecraft with proper length 200 m travels at speed of 0).2c relative to an inertial frame of referenceS. A small ball rolls inside the spacecraft with a velocity u' = 0.14c in the positive a direction relative tothe spacecraft.u')a. What is the ball's speed as measured by an observer in frame s? Give answer in units of c.0.33b. How much time will it take to the ball to cross the whole spacecraft (end to end) according to anobserver in frame S? Give answer in microseconds (1 μs = 10-6 s).c. What is the distance the ball rolled (relative to frame S). Give answer in km.

Proper length of space craft L= 200mspeed of space craft v=0.2C Speed of small ball U= 0.14C

Answered: A spacecraft with proper length 200 m…

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