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Two particles A and B start from rest at the origin 8 = 0 and move along a straight line such that aa (8t – 4) ft/s² and aB = (18t? 12) ft / s?, where t is in seconds. Part A Determine the distance between them when t = 5 s. Express your answer using three significant figures and include the appropriate units. AS AB = 671 ft Submit Previous Answers v Correct Part B Determine the total distance particle A has traveled in t = 5 s. Express wer using three significant figures and include the appropriate units. 8A total = 118 ft

Two particles A and B start from rest at the origin 8 = 0 and move along a straight line such that aa (8t – 4) ft/s² and aB = (18t? 12) ft / s?, where t is in seconds. Part A Determine the distance between them when t = 5 s. Express your answer using three significant figures and include the appropriate units. AS AB = 671 ft Submit Previous Answers v Correct Part B Determine the total distance particle A has traveled in t = 5 s. Express wer using three significant figures and include the appropriate units. 8A total = 118 ft

Elements Of Electromagnetics
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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How should the kinematic diagrams look for these two problems?

 

Two particles A and B start from rest at the origin s = 0 and move along a straight line such that a a = (8t – 4) ft/ s? and aB = (18t2 – 12) ft /s2, where t is in seconds. Part A Determine the distance between them when t = 5 s. Express your answer using three significant figures and include the appropriate units. AS AB = 671 ft Submit Previous Answers v Correct Part B Determine the total distance particle A has traveled in t = 5 s. Express your answer using three significant figures and include the appropriate units. 8A total = 118 ft
Transcribed Image Text:Two particles A and B start from rest at the origin s = 0 and move along a straight line such that a a = (8t – 4) ft/ s? and aB = (18t2 – 12) ft /s2, where t is in seconds. Part A Determine the distance between them when t = 5 s. Express your answer using three significant figures and include the appropriate units. AS AB = 671 ft Submit Previous Answers v Correct Part B Determine the total distance particle A has traveled in t = 5 s. Express your answer using three significant figures and include the appropriate units. 8A total = 118 ft
I Review Car B is traveling a distance d ahead of car A. Both cars are traveling at 60 ft/s when the driver of B suddenly applies the brakes, causing his car to Part A decelerate at 12 ft/s?. It takes the driver of car A 0.75 s to react (this is the normal reaction time for drivers). When he applies his brakes, he decelerates at 20 ft/s?. (Figure 1) Determine the minimum distance d between the cars so as to avoid a collision. Express your answer to three significant figures and include the appropriate units. • View Available Hint(s) d = 8.44 ft Submit Previous Answers Figure < 1 of 1 v Correct Here we learn how to find the minimum distance between the cars needed to avoid a collision in a situation when the front one suddenly starts to brake and the back one starts to brake more intensely after the reaction time passes. Provide Feedback Next >
Transcribed Image Text:I Review Car B is traveling a distance d ahead of car A. Both cars are traveling at 60 ft/s when the driver of B suddenly applies the brakes, causing his car to Part A decelerate at 12 ft/s?. It takes the driver of car A 0.75 s to react (this is the normal reaction time for drivers). When he applies his brakes, he decelerates at 20 ft/s?. (Figure 1) Determine the minimum distance d between the cars so as to avoid a collision. Express your answer to three significant figures and include the appropriate units. • View Available Hint(s) d = 8.44 ft Submit Previous Answers Figure < 1 of 1 v Correct Here we learn how to find the minimum distance between the cars needed to avoid a collision in a situation when the front one suddenly starts to brake and the back one starts to brake more intensely after the reaction time passes. Provide Feedback Next >
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Note:- As per the guidelines of Bartleby only one question is allowed to solve. So please submit the other part separately.

Given data:

  • The acceleration of particle A,  aA=8t-4 ft/s2.
  • The acceleration of particle B,  aB=18t2-12 ft/s2.

Write the acceleration of particle A in velocity.

aA=dvAdt=8t-4dvA=8t-4dt........1

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