Inertia braking impact caused such terror

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Liang Jinming drawing schematic cement column crash
"This accident, I was the first time I saw." Talking about a car accident occurred yesterday morning, Mr. Ge both some regret and scared, and felt very strange - a semi-trailer loaded with cement column, after the brakes , concrete pillars inside the bucket under the effect of inertia to raze even the cab, the driver died on the spot.
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"This kind of impact, how much was it?"
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Body in concrete pillars,http://www.bibet.com/home.php?mod=spacecp&ac=blog&blogid=, all rushed to the cab
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Yesterday morning, Mr. Ge is near Xiaoshan Wanda Road and Pacific Road intersection waiting for a friend. 0:20 around, he saw a good few semi-trailer loaded with cement pillars mighty coming all the way from Wanda road.
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At this time, crossing the traffic lights are jumps, Mr. Ge to see the first car has already crossed the road, the second car stopped to see the red light. "It was followed by a third car at an interval of 10 meters has stopped." So he did not expect that,scarpe louboutin, in the case in front of a car did not move, the third car suddenly accelerated underway. Just started, it is an abrupt stop.
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"Just heard a loud bang in the trunk of concrete pillars all go forward,http://xuxuting.com/news/html/?45964.html, toward the cab!" Mr. Ge is still a lingering fear, he said, have to take to Mars, like cutting things. Suddenly the whole front was flattened, out of cement pillar still continue forward part of it, crashed into a car in front of "ass."
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"Too bad." Mr. Ge saw the bloody car, the driver and the seat are folded up together,scarpe hogan outlet, all crushed. "I only saw him reveal a hand and a foot." Sighed Mr. Ge said, the driver is not too tired, hallucinations. "Cement column in the car filled with too many things heavy, inertia, too big impact."
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Accident car installed 19 concrete pillars, suspected overloaded
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Yesterday afternoon,air max tn pas cher, the reporter opened the same team a driver's phone.
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"I looked,http://bbs.travelca.ca/forum.php?mod=viewthread&tid=27561, and walked away, the occurrence of such a thing, and my heart very uncomfortable, and now have not eaten lunch." He said they are a transport company's employees, the same day to a total of five or six vehicles Shippers, ready to Xiaoshan a construction site.
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According to him, the vehicle about 19 concrete pillars, each 50 cm in diameter,http://erp.rzysw.com:8389/2043/news/html/?4329.html, about 10 meters long. "For security,chaussure nike tn pas cher, the cement column is fixed with rope live." He said such a thing, he is also the first encounter.
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Reporters later learned that the accident is part of a fleet of container shipping company. According to Wu, the person in charge said the accident the driver surnamed Liu, Anhui, 30 years old this year, and the family was rushed to Hangzhou.
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"So late still driving, whether there is driver fatigue?" The reporter asked.
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"Our company is very attentive to safety education, repeatedly emphasized non-fatigue driving and drink driving." He said these vehicles originally shipments at night, the driver one day trip, also four to five hours during the day and have enough rest time, so the problem of driver fatigue certainly does not exist in terms of transport volume from the business. "But he has had a good rest during the day and in the end,http://bbs.ahqnjlr.org/forum.php?mod=viewthread&tid=1321268, this is difficult to regulation, it might crash had never been seen inattention or fatigue dozed off."
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"I heard the car is equipped with 19 concrete pillars, is overloaded?" A reporter asked.
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"Super is certainly some, in fact, are so engaged in the transportation industry." However, he said, in the end how much beyond, to specifically look at the specifications of the cement column can be determined.
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Currently, the traffic police department is investigating the matter.
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Braking force generated by the impact in the end how much
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Inertia braking impact caused such terror, office colleagues feel incredible. What factors impact this inertia with relevant? How does it cause the car crash? We specifically ask Hangzhou academic senior physics teacher - grade teacher, Hangzhou Normal University High School vice principal Wu Yu.
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He said that such a strike force may be used to calculate estimated the theorem of momentum in mechanics. Specific to this accident, the reality may be more complicated calculation methods can only give a concise version.
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He gives a formula that F (strike force) = M (mass) V (velocity) / T (strike to stop the time). "This strike force calculation applies the brakes, the brake force if slow would naturally much smaller."
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Now apply the formula:
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Our cement column 2000 kg each calculation,http://www.megasearches.com/forum/viewtopic.php?f=6&t=182342, then 19 concrete pillars of M = 38000 kg.
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According to witnesses, the car fast start did not take long stopped, although the speed is not particularly fast,scarpe hogan 2015, but 5 m / s is definitely yes. So V = 5 m / sec.
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The concrete pillars from hit to stop time generally not more than 3 seconds, taking the longest time, we chose three seconds.
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The results thus calculated is, F is approximately equal to 63,330 Newtons.
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What the figures show it,http://nmqz965.tiantiancaobib.com/forum.php?mod=viewthread&tid=794386&extra=?
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"This is equivalent to the weight of 6333 kg impact force generated." Wu said, almost 84 normal adults (75 kg) pressure on the body weight, equivalent to a 6 tons heavy pressure on the body trucks Such strength can be imagined.
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Traffic police department warned that a long bar loaded cargo truck, cargo must be firmly secured. Overloaded trucks, emergency situations can not slam the brakes,http://shop.nujiangw.com/forum.php?mod=viewthread&tid=313629, the steering wheel can not otherwise easily toward the cab of goods under the effect of inertia. Drivers can take the snub the way, for a buffer process.