The time interval separating two events as seen by an observer for whom the events occur at the same position is called the . [A - 1 mark] . Imagine playing golf in a world where the speed of light is only 3.4 m/s. Golfer A hits a ball down a flat horizontal green for a distance that he measures as 75.0 m. Golfer B, driving in a cart, happens to pass by just as the ball is hit. Golfer A stands and watches while golfer B moves toward the ball at a constant speed of 2.8 m/s. a) Which golfer will measure the proper time interval for the motion Goifer A of the ball? Justify your response (no calculation necessary). [A - 2 marks] Golfer B b) Which golfer will measure the proper length that the ball travels? Justify your response (no calculation necessary). [A - 2 marks]