- #1
casualreader
- 3
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Hi,
Basic question.
I'm confused by a time dilation example (37.3 in Young and Freedman 11th ed.). Mavis is moving at .600c relative to earth-bound Stanley, and at the instant she passes, both start timers. Part b asks "At the instant when Mavis reads .400 s on her timer, what does Stanley read on his?" The answer they get is .320 s.
My question is, doesn't this depend on what reference frame you're in? I think for the .320 s answer you'd need to assume we're in Mavis' frame. (Somehow the textbook's reasoning is not transparent to me.)
Thanks in advance...
Basic question.
I'm confused by a time dilation example (37.3 in Young and Freedman 11th ed.). Mavis is moving at .600c relative to earth-bound Stanley, and at the instant she passes, both start timers. Part b asks "At the instant when Mavis reads .400 s on her timer, what does Stanley read on his?" The answer they get is .320 s.
My question is, doesn't this depend on what reference frame you're in? I think for the .320 s answer you'd need to assume we're in Mavis' frame. (Somehow the textbook's reasoning is not transparent to me.)
Thanks in advance...