GR0877 Problem 94
PROBLEM STATEMENT: This problem is still being typed.
SOLUTION: (C) Lorentz transformation suggests that for the observer moving at constant speed parallel to -axis the event (flash of light) that occurs at for the observer is at time (we assume is moving in the positive direction of and at a zero time according to both observers the origins of their reference frames coincide, therefore is negative; this means that event (as observed by ) occurs seconds before the other). Let , then, using units in which , one has or (for such an approximation the calculation error will be 7%). The closest choice is (C). If you calculate the square root in the above equation fairly, you will get .
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