You’re passing a car on the highway. You want to know how much time is required to completely pass the car, from no overlap between the cars to no overlap between the cars. Call your car A, the car you are passing B.
a. Specify two events that can be given spacetime coordinates. In describing the events, refer to cars A and Band to their front bumpers and rear bumpers.
b. In either reference frame, is there ore clock that is present at both events?
c. Who, if anyone, measures the proper time between the events?
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