Question

Two cars are traveling on level terrain at 60 mi/h on a road with a coefficient...

Two cars are traveling on level terrain at 60 mi/h on a road with a coefficient of adhesion of 0.8. The driver
of car 1 has a 2.5-s perception/reaction time and the driver of car 2 has a 2.1-s perception/reaction time.
Both cars are traveling side by side and the drivers are able to stop their respective cars in the same distance
after first seeing a roadway obstacle (perception and reaction plus vehicle stopping distance). If the braking
efficiency of car 2 is 0.78, determine the braking efficiency of car 1. (Assume minimum theoretical stopping
distance and ignore aerodynamic resistance.)

Engineering   Civil-Engineering   
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