1. Situation: You are to determine the duration of the yellow light at a highway intersection. Assume that cars will be approaching the intersection traveling at 70 mph, and that the reaction time of the driver is 2.5 sec and that cars achieve a deceleration of 1/8 of the gravitational acceleration. If g=32.2 fps?, a. How long must the traffic light remain yellow to allow drivers to come to stop before the traffic light turns red? b. What is the minimum distance of a car from the intersection when the light turns yellow to ensure that it comes to a full stop just before the intersection?
1. Situation: You are to determine the duration of the yellow light at a highway intersection. Assume that cars will be approaching the intersection traveling at 70 mph, and that the reaction time of the driver is 2.5 sec and that cars achieve a deceleration of 1/8 of the gravitational acceleration. If g=32.2 fps?, a. How long must the traffic light remain yellow to allow drivers to come to stop before the traffic light turns red? b. What is the minimum distance of a car from the intersection when the light turns yellow to ensure that it comes to a full stop just before the intersection?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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1. Situation: You are to determine the duration of the yellow light at a highway
intersection. Assume that cars will be approaching the intersection traveling at 70
mph, and that the reaction time of the driver is 2.5 sec and that cars achieve a
deceleration of 1/8 of the gravitational acceleration. If g=32.2 fps?,
a. How long must the traffic light remain yellow to allow drivers to come to
stop before the traffic light turns red?
b. What is the minimum distance of a car from the intersection when the light
turns yellow to ensure that it comes to a full stop just before the intersection?
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