Ann witnesses two events that occur on her x - axis that occur 5 seconds apart. The first of these events occurs at the origin, and the second at another position on the positive side of the origin. Bob is moving past Ann at a speed of 0.7 c in the x - direction. His origin coincides with Ann's origin at the moment when the event there occurs. He agrees with Ann that the two events were separated in time by 5 seconds, but disagrees about which event came first. Find the distance of the other event from the origin.
a. according to Ann
b. according to Bob