<DIV>A train is travelling due south at 120 mph.</DIV>
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<DIV>A fly is flying due north along the same stretch of track at 5mph.</DIV>
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<DIV>The fly strikes the front of the train square-on, and sticks there.</DIV>
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<DIV>Because the fly has changed direction, now on a reciprocal course to that which it was originally flying, it must have completely stopped at some time during its directional transition.</DIV>
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<DIV>If the fly was momentarily stationary at thetime at which it changed direction,so must the train have been...............</DIV>
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<DIV>Answers on a five pound note please, to..........</DIV>
<DIV></DIV>
<DIV>A fly is flying due north along the same stretch of track at 5mph.</DIV>
<DIV></DIV>
<DIV>The fly strikes the front of the train square-on, and sticks there.</DIV>
<DIV></DIV>
<DIV>Because the fly has changed direction, now on a reciprocal course to that which it was originally flying, it must have completely stopped at some time during its directional transition.</DIV>
<DIV></DIV>
<DIV>If the fly was momentarily stationary at thetime at which it changed direction,so must the train have been...............</DIV>
<DIV></DIV>
<DIV>Answers on a five pound note please, to..........</DIV>