Fifth Gear Show |
Head-on collisions are an often fatal type of road traffic collision. U.S. statistics show that in 2005, head-on crashes were only 2.0% of all crashes, yet accounted for 10.1% of US fatal crashes. A common misconception is that this over-representation is because the relative velocity of vehicles traveling in opposite directions is high. While it is true (via Galilean relativity) that a head-on crash between two vehicles traveling at 50 mph is equivalent to a moving vehicle running into a stationary one at 100 mph, it is clear from basic Newtonian Physics that if the stationary vehicle is replaced with a solid wall or other stationary near-immovable object such as a bridge abutment, then the equivalent collision is one in which the moving vehicle is only traveling at 50 mph.,{1} except for the case of a lighter car colliding with a heavier one. The television show MythBusters performed a demonstration of this effect in a 2010 show.[2]
Head-on collisions, sideswipes, and run-off-road crashes all belong to a category of crashes called lane-departure or road-departure crashes. This is because they have similar causes, if different consequences. The driver of a vehicle fails to stay centered in their lane, and either leaves the roadway, or crosses the centerline, possibly resulting in a head-on or sideswipe collision, or, if the vehicle avoids oncoming traffic, a run-off-road crash on the far side of the road.
Fifth Gear Show |
The British show "Fifth Gear" made an episode simulating a car driving at a wall at 120mph. They were using a beloved Ford Focus mk1. The results were terrible. The car was so smashed from the impact that the steering rack touches the back seats. 0% of survival. This was due to deceleration from 200km/h to 0 in 68 miliseconds ( 0,68 seconds) with its occupants experiencing peaks of 400 G. The front end hits the wall with such force that the car breaks in middle and bends 90 degrees. Modern cars can easily reach such speeds, so be careful.
Fifth Gear Show |
P.S. we had complains that video doesn't play correctly here is the original link here . The most interesting moments are @ 00:11 , 00:32 , 00:47, 01:01.
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