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)

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)

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Description: You are driving toward a traffic signal when it turns yellow. Your speed is the legal speed limit ofVo = 55 km/h; your best deceleration rate has the magnitude a = 5.18 m/s?. Your best reaction timeto begin braking is T = 0.75 s. To avoid having the

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

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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Concept explainers

Displacement, Velocity and Acceleration

In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.

Linear Displacement

The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.

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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)

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