Imagine that your boss is on the Earth-Pluto shuttle which travels
at a constant velocity of 0.60 straight between Earth and Pluto a
distance of 5.0 h in an inertial frame attached to the Sun. An
hour into the flight (according to your boss’s watch) your boss
sends a laser message to you on Earth, asking you to send a
wake-up call appropriately timed so that your boss can catch a
1-h nap (as measured on your boss’s watch). You immediately
reply with the wake-up call and an apology that the call is late,
claiming in your defense that the laws of physics prevented a
How long has your boss slept (according to your boss’s watch)
by the time your message is received at the shuttle?
s=spacetime, t=time, d=distance
The Attempt at a Solution
I am utterly stuck from the beginning. My first lead is that an hour into the flight means 1h as measured by the boss. Is that 1 hour considered space time or is that just "t" and you have to calculate the space time? Does the velocity of the boss, .6, have any play? Can anyone give me some helps/hints?
edit: I also know that the messages has velocity=c which is 1 in both the Sun's frame and the boss's frame. (Home and other)