The 1978 Ford Mustang was approximately 30 feet into the intersection, coming to

Question

The 1978 Ford Mustang was approximately 30 feet into the intersection, coming to a stop close to the western-most lane of Broad Avenue. The 1988 Chevrolet Cargo Van was found directly behind the car. Both vehicles showed skid marks from the west side of the intersection to the position where they came to a stop. Our analysis showed that the Ford left an 90-foot skid mark prior to being struck by the van, while the van left a 45-foot skid mark prior to impact. A drag sled was used to determine that the coefficient of kinetic friction between the road and the tires is 0.59. The speed limit on West Trenton is 35 mph. The weight of the 1978 Ford Mustang is approximately 2700 lbs. Use the statements filed in the police report along with any external information you deem necessary and reconstruct the accident to determine (1) the speed of Sandy

Explanation / Answer

1) v^2=2*a*S , we get v=23.18m/s........ so speed of Sandy's car =51.85miles/hr

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