(vB)o = 45 mi/h (VA)o = 40 mi/h B A 60 ft
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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Question
Car A is traveling at 40 mi/h when it enters a 30 mi/h speed zone. The driver of car A decelerates at a rate of 16 ft/s2 until reaching a speed of 30 mi/h, which she then maintains. When car B , which was initially 60 ft behind car A and traveling at a constant speed of 45 mi/h, enters the speed zone, its driver decelerates at a rate of 20 ft/s2 until reaching a speed of 28 mi/h. Knowing that the driver of car B maintains a speed of 28 mi/h, determine (a) the closest that car B comes to car A, (b) the time at which car A is 70 ft in front of car B.
![(vB)o = 45 mi/h
(VA)o = 40 mi/h
B
A
60 ft](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F68a40876-5e19-444d-8ae2-def8a672c343%2F3f237699-1909-4ca8-8ed3-5f8a59a0edff%2Ffoqu79b.png&w=3840&q=75)
Transcribed Image Text:(vB)o = 45 mi/h
(VA)o = 40 mi/h
B
A
60 ft
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