Homework Help is Here – Start Your Trial Now!
Science
Physics
A section of US-460, between I-81 and campus, goes across a valley and includes a long straight section with a 3% slope in the distance and a 4% slope where the cars in the picture are returning to campus coming from 1-81. The speed limit is 65 mi/h and both directions were resurfaced in April, 2020 during the pandemic stay-at-home order. Animals regularly move across US-460 in this valley. You are returning to campus after picking up a friend in Roanoke. Because it is raining, you are traveling five (5) miles below the speed limit. An animal runs across US-460 in front of you and you slam on the brakes, skidding to a stop (but you do not hit the animal). Consider each scenario: where the animal could cross in front of you on (1) the 3% section in the distance of the picture or (2) the 4% section where you see the vehicles. Assume your vehicle's braking efficiency is 0.85 and your perception/reaction time is 1.5 second for both scenarios. What are the two stopping distances and what is their difference in feet? Provide your answers in whole feet (ie no decimals). It makes no sense to report stopping distance to fractions of a foot. Show your work. Should you be more alert on the 3% section or the 4% section and explain why using the variables in the problem?

A section of US-460, between I-81 and campus, goes across a valley and includes a long straight section with a 3% slope in the distance and a 4% slope where the cars in the picture are returning to campus coming from 1-81. The speed limit is 65 mi/h and both directions were resurfaced in April, 2020 during the pandemic stay-at-home order. Animals regularly move across US-460 in this valley. You are returning to campus after picking up a friend in Roanoke. Because it is raining, you are traveling five (5) miles below the speed limit. An animal runs across US-460 in front of you and you slam on the brakes, skidding to a stop (but you do not hit the animal). Consider each scenario: where the animal could cross in front of you on (1) the 3% section in the distance of the picture or (2) the 4% section where you see the vehicles. Assume your vehicle's braking efficiency is 0.85 and your perception/reaction time is 1.5 second for both scenarios. What are the two stopping distances and what is their difference in feet? Provide your answers in whole feet (ie no decimals). It makes no sense to report stopping distance to fractions of a foot. Show your work. Should you be more alert on the 3% section or the 4% section and explain why using the variables in the problem?

University Physics Volume 1
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter2: Vectors
Section: Chapter Questions
Problem 51P: In an attempt to escape a desert island, a castaway builds a raft and sets out to sea. The wind...
See similar textbooks
icon
Related questions
Question
A section of US-460, between I-81 and campus, goes across a valley and includes a long straight section with a 3% slope in the distance and a 4% slope where the cars in the picture are returning to campus coming from 1-81. The speed limit is 65 mi/h and both directions were resurfaced in April, 2020 during the pandemic stay-at-home order. Animals regularly move across US-460 in this valley. You are returning to campus after picking up a friend in Roanoke. Because it is raining, you are traveling five (5) miles below the speed limit. An animal runs across US-460 in front of you and you slam on the brakes, skidding to a stop (but you do not hit the animal). Consider each scenario: where the animal could cross in front of you on (1) the 3% section in the distance of the picture or (2) the 4% section where you see the vehicles. Assume your vehicle's braking efficiency is 0.85 and your perception/reaction time is 1.5 second for both scenarios. What are the two stopping distances and what is their difference in feet? Provide your answers in whole feet (ie no decimals). It makes no sense to report stopping distance to fractions of a foot. Show your work. Should you be more alert on the 3% section or the 4% section and explain why using the variables in the problem?
Transcribed Image Text:A section of US-460, between I-81 and campus, goes across a valley and includes a long straight section with a 3% slope in the distance and a 4% slope where the cars in the picture are returning to campus coming from 1-81. The speed limit is 65 mi/h and both directions were resurfaced in April, 2020 during the pandemic stay-at-home order. Animals regularly move across US-460 in this valley. You are returning to campus after picking up a friend in Roanoke. Because it is raining, you are traveling five (5) miles below the speed limit. An animal runs across US-460 in front of you and you slam on the brakes, skidding to a stop (but you do not hit the animal). Consider each scenario: where the animal could cross in front of you on (1) the 3% section in the distance of the picture or (2) the 4% section where you see the vehicles. Assume your vehicle's braking efficiency is 0.85 and your perception/reaction time is 1.5 second for both scenarios. What are the two stopping distances and what is their difference in feet? Provide your answers in whole feet (ie no decimals). It makes no sense to report stopping distance to fractions of a foot. Show your work. Should you be more alert on the 3% section or the 4% section and explain why using the variables in the problem?
Expert Solution
steps

Step by step

Solved in 2 steps with 9 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
University Physics Volume 1
University Physics Volume 1
Physics
ISBN:
9781938168277
Author:
William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:
OpenStax - Rice University
Physics for Scientists and Engineers, Technology …
Physics for Scientists and Engineers, Technology …
Physics
ISBN:
9781305116399
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
SEE MORE TEXTBOOKS