You are driving toward a traffic signal when it turns yellow. Your speed is the legal speed limit of Vo = 55 km/h; your best deceleration rate has the magnitude a = 5.18 m/s². Your best reaction time to begin braking is T = 0.75 s. To avoid having the front of your car enter the intersection after the light turns red, should you brake to a stop or continue to move at 55 km/h if the distance to the intersection and the duration of the yellow light are (a) 39 m and 2.9 s, and (b) 31 m and 1.6 s? Give an answer of brake, continue, either (if either strategy works), or neither (if neither strategy works and the yellow duration is inappropriate). (a) (b)

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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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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You are driving toward a traffic signal when it turns yellow. Your speed is the legal speed limit of
Vo = 55 km/h; your best deceleration rate has the magnitude a = 5.18 m/s?. Your best reaction time
to begin braking is T = 0.75 s. To avoid having the front of your car enter the intersection after the
light turns red, should you brake to a stop or continue to move at 55 km/h if the distance to the
intersection and the duration of the yellow light are (a) 39 m and 2.9 s, and (b) 31 m and 1.6 s? Give
an answer of brake, continue, either (if either strategy works), or neither (if neither strategy works
and the yellow duration is inappropriate).
(a)
(b)
Transcribed Image Text:You are driving toward a traffic signal when it turns yellow. Your speed is the legal speed limit of Vo = 55 km/h; your best deceleration rate has the magnitude a = 5.18 m/s?. Your best reaction time to begin braking is T = 0.75 s. To avoid having the front of your car enter the intersection after the light turns red, should you brake to a stop or continue to move at 55 km/h if the distance to the intersection and the duration of the yellow light are (a) 39 m and 2.9 s, and (b) 31 m and 1.6 s? Give an answer of brake, continue, either (if either strategy works), or neither (if neither strategy works and the yellow duration is inappropriate). (a) (b)
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