Chapter 28, Problem 5CQ

### College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

Chapter
Section

### College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

# To whom does the elapsed time for a process seem to be longer, an observer moving relative to the process or an observer moving with the process? Which observer measures proper time?

To determine

If the elapsed times for a process seem to be longer to an observer who is moving relative to the process or an observer moving with the process. Also, to find the observer who measures proper time.

Explanation

Introduction:

Time dilation is the phenomenon where the study of the relative motion of one observer with respect to other reduces the time taken by the observer. Proper time is the time taken when the observer is in the state of rest with respect to the task performed.

When an observer is moving relative to the process, the time taken by the process is longer because the time dilation states that, due to the relative motion of both the observer, the process time slows down...

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