{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

1099_Physics ProblemsTechnical Physics

# 1099_Physics ProblemsTechnical Physics - 440 P39.15...

This preview shows page 1. Sign up to view the full content.

440 Relativity P39.15 (a) Since your ship is identical to his, and you are at rest with respect to your own ship, its length is 20 0 . m . (b) His ship is in motion relative to you, so you measure its length contracted to 19 0 . m . (c) We have L L v c p = 1 2 2 from which L L v c p = = = 19 0 0 950 1 2 2 . . m 20.0 m and v c = 0 312 . . *P39.16 In the Earth frame, Speedo’s trip lasts for a time t x v = = = 20 0 21 05 . . ly 0.950 ly yr yr . Speedo’s age advances only by the proper time interval t t p = = = γ 21 05 6 574 . . yr 1 0.95 yr 2 during his trip. Similarly for Goslo, t x v v c p = = = 1 20 0 1 0 75 17 64 2 2 2 . . . ly 0.750 ly yr yr . While Speedo has landed on Planet X and is waiting for his brother, he ages by 20 0 20 0 5 614 . . . ly 0.750 ly yr ly 0.950 ly yr yr = . Then Goslo ends up older by 17 64 6 574
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}