Rear-End Collision Scenarios Case Study

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In the Sandy Dayton’s case, a van rear-ended Sandy’s mustang that came to a sudden stop. According to the report, the 1978 Ford Mustang was 30-feet into the intersection, had 90-food skid marks, and weighed 2700 pounds. The 1988 Chevrolet Cargo Van was directly behind the mustang and left a 45-foot skid mark. The coefficient of kinetic friction was determined to be 0.59. The speed limit on the road is 35 mph. According to article “Rear-end Collision Scenarios Categorized by Type of Human Error”, 83.89 percent of all rear-end accidents happen when the preceding vehicle is stopped and the following vehicle is still moving, but only 1.61 percent of those are caused when the preceding vehicle comes to a sudden stop (Hiramatsu and Hideo 2). Since the van could not stop in time to avoid hitting Sandy, the van was speeding and at fault for the crash, which can be proven with vectors and motion in one-dimension physics principles. …show more content…
According to Carmax, the average weight of a 1988 Chevrolet Cargo Van is 4654lbs (“1998 Chevrolet”). The Zeus manual states, one pound is .4535 kg so multiplying 4654lbs by .4535 gets 2111kg (Zeus 2). The weight of the Mustang is 2700 pounds, which multiplied by .4535kg gets 1224.7kg. The skid mark of both cars together is 30 feet and 1 meter is 3.28 feet (Zeus 2). Therefore, 30 divided by 3.28 feet gets 9.144 meters. The skid marks of the mustang was 90 feet, which divided by 3.28 is 27.4 meters and 45 feet for the van divided by 3.28 is 13.7
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