Craig is an accident reconstructionist. He arrives at an accident where there are 4 skid marks of differen lengths. He finds their measures to be 85 ft, 92 ft, 8 ft, and 90 ft. It is an asphalt road with a drag factor c 0.8. Because he does not know the efficiency of the driver's brakes he assumes a brake efficiency of

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Craig is an accident reconstructionist. He arrives at
an accident where there are 4 skid marks of different
lengths. He finds their measures to be 85 ft, 92 ft, 88
ft, and 90 ft. It is an asphalt road with a drag factor of
0.8. Because he does not know the efficiency of the
driver's brakes, he assumes a brake efficiency of
80%. What is the minimum speed the driver could
have been going?
Transcribed Image Text:Craig is an accident reconstructionist. He arrives at an accident where there are 4 skid marks of different lengths. He finds their measures to be 85 ft, 92 ft, 88 ft, and 90 ft. It is an asphalt road with a drag factor of 0.8. Because he does not know the efficiency of the driver's brakes, he assumes a brake efficiency of 80%. What is the minimum speed the driver could have been going?
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