## Question

###### All parameters of this problem given in SR units_The following question examines an alien space craft traveling towards the Earth, according toanobserver on the Earth_ Forthe purposes ofthis problem, you may assume thatthe Earth is in an inertial reference frame which is at rest i.e_ the Home frame You may assume the satellite is also at rest in the Earth's rest frame From the alien's inertial reference frame, i.e: the Other Frame; they measure the Earth to travel distance 0f L = %Is i

All parameters of this problem given in SR units_ The following question examines an alien space craft traveling towards the Earth, according toanobserver on the Earth_ Forthe purposes ofthis problem, you may assume thatthe Earth is in an inertial reference frame which is at rest i.e_ the Home frame You may assume the satellite is also at rest in the Earth's rest frame From the alien's inertial reference frame, i.e: the Other Frame; they measure the Earth to travel distance 0f L = %Is in a time of Al' 5 Is after the satellite passes them. The alien spacecraft measures velocity for the Earth and satellite of & J1 Actb 0istv+ } 0apt = ttvt Sata Il Vata F0 (a) (5 points) According to the Alien, how far did they travel from the time the satellite passed them to the time the Earth arrived at them, |Ad'|? Briefly explain your answer: (b) (3 points) What velocity does the Earth observer measure for the Alien's spaceship, 0? (c) (12 points) What time interval does the Earth observer measure for the Alien's travel towards the Earth, 4t? What distance does the Earth observer measure for the Alien's displacement magnitude_ Adj? How could the Earth observer calculate how much time elapsed in the Alien's frame from measurements in their own frame? (d) (5 points) What drove Einstein to develop his theory of special relativity? What are the two fundamental postulates of Einstein's theory of special relativity?