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12. What are the elements of driving affected by speed? 13. Higher speeds puts higher stress on the vehicles equipment 14. Reaction time is the time it takes a driver of a motor vehicle to reach to a hazard it sees on the foadway. 15. The average person has a reaction time of 3/4 of a second 16. Passing violations can contribute to several of the top ten leading causes of fatal motor vehicle crashes 17. Improper passing contributes to a large number of head-on collisions. 18 It is a violation of law to pass a vehicle on the crest of grade of a curve. 19 It is a violoation to pass a vehicle in an intersection of the highiway