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A driver traveling at 50mph sees a wall at a certain distance ahead. The driver applies the brakes immediately (perception time is 3 seconds) and begins slowing the vehicle at 6m/sec2 (decelerating). If the distance from the stopping point to the wall is 12m., how far was the car from the wall upon perception?

A driver traveling at 50mph sees a wall at a certain distance ahead. The driver applies the brakes immediately (perception time is 3 seconds) and begins slowing the vehicle at 6m/sec2 (decelerating). If the distance from the stopping point to the wall is 12m., how far was the car from the wall upon perception?

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A driver traveling at 50mph sees a wall at a certain distance ahead. The driver applies the brakes immediately (perception time is 3 seconds) and begins slowing the vehicle at 6m/sec2 (decelerating). If the distance from the stopping point to the wall is 12m., how far was the car from the wall upon perception?
Transcribed Image Text:A driver traveling at 50mph sees a wall at a certain distance ahead. The driver applies the brakes immediately (perception time is 3 seconds) and begins slowing the vehicle at 6m/sec2 (decelerating). If the distance from the stopping point to the wall is 12m., how far was the car from the wall upon perception?
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