The earth and sun are 8.3 light minutes apart. Ignore their relative motion for this problem and assume they live in a single inertial frame, the Earth-sun frame. Events A and B occur at t = 0 on the Earth and at 2 minutes on the Sun respectively. Find the time difference between the events according to an observer moving at u = 0.8 c from Earth to Sun. Repeat if observer is moving in the opposite direction at u = 0.8 c . Answer to 1 % accuracy.
