it is necessary for a vehicle to have crumple zones or not justify your answer
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Crumple zones, crush zones,[1] or crash zones, are a structural safety feature used in vehicles, mainly in automobiles, to increase the time over which a change in velocity (and consequently, momentum) occurs from the impact during a collision by controlled deformation; in recent years also incorporated into trains and railcars.[2][3][4][5]
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hheheh sorry for that and here is my real introduction
my name is sam or you can call me samii or
purple gem
and I am 6th going to 7th tomorrow
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