XPost: alt.birdwatching.ducks, sac.politics, rec.motorcycles   
   XPost: can.politics   
   From: tetraethylleadREMOVETHIS@yahoo.com   
      
   On 2014-06-25, Dave Smith  wrote:   
      
   > We had a similar case to that a few years ago. A car and a motorcyclist   
   > crashed head on in front of my neighbour's house. The old lady driving   
   > the car had moved over to avoid some geese that were walking across the   
   > road.  She had not yet got back to the right side of the road when the   
   > motorcycle crested the hill and they collided.   
   >   
   > The cops closed the road for hours while they did the reconstruction and   
   > determined that the cyclist's speed was not a factor because there was   
   > only about 1 foot of rubber from the bike braking. That was curious   
   > because I used to get home from work at 3:45 and for the last week and a   
   > half, since motorcycle season had opened.  The kid used to get home from   
   > school, hop on his crotch rocket and then come flying down our street, a   
   > 60 kph zone, doing well over 100 kph.   
   >   
   > It was just a matter of time before this kid got killed, and it is a bit   
   > of a relief that he did not take someone else out with him, but they   
   > really socked it to the old lady.  Sure, she was on the wrong side of   
   > the road, but if he had been driving at or near the 60 kph speed limit,   
   > they both would have had time to react.   
      
   60+60 = 120 kph closing speed. 60+100=160kph closing speed   
   160-120=40 40/120 = 1/3  100kph = 28m/s 1/3 of a meter (braking   
   distance in story above) is covered in 0.012 seconds plus a bit   
   (slowing through that foot). Now he gains a third of that or 0.004   
   seconds plus a bit, call it 0.008s for the sake of argument. Then a   
   third of his reaction time, 0.62 seconds/3 = .207s. So he gains a total   
   of .215 seconds. He still sounds dead to me.   
      
   reaction time from here: http://www.bikesafer.com/detail/braketime.html   
      
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