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[" The driver of a train moving at a spe...

[" The driver of a train moving at a speed "v_(1)" ,sights another train at a disance "d" ,ahead of him "],[" moving in the same direction with a slower speed "v_(2)" .He applies the brakes and gives a constant "],[" retardation "a" to his train.Show that there will be no collision if "d>(v_(1)-v_(2))^(2)/2" a."]

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The driver of a train moving at a speed v_(1) sights another train at a disane d , ahead of him moving in the same direction with a slower speed v_(2) . He applies the brakes and gives a constant teradation a to his train. Show that here will be no collision if d gt (v_(1) -v_(2))^(2) //2 a .

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