3. Situation: You are driving when suddenly you saw a cat crossing across the street You applied the brakes of your car at 8 fps to slow it down until it stops. After 456 ft, your car has come to a full stop. Determine: a. How fast your car was traveling immediately before the brakes were applied b. The time required for the car to stop

3. Situation: You are driving when suddenly you saw a cat crossing across the street You applied the brakes of your car at 8 fps to slow it down until it stops. After 456 ft, your car has come to a full stop. Determine: a. How fast your car was traveling immediately before the brakes were applied b. The time required for the car to stop

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: determine the time required for the car to travel from point A to point B

A: The given problem consists of three stages. 1. Car starts from rest and reaches a speed of 9…

Q: Car Ais traveling at a location where the speed limit is 100 km/h. The police officer in car…

A: Given : For Car A : VOA = 130 km/h = 36.11 m/secVFA = 100 km/h = 27.78 m/sectAF = 4.2 sec For Car P…

Q: A car is traveling up a 1.5% grade at 65 mi/hr on good, wet pavement. The driver brakes to try to…

A: Given; Grade: 1.5% (or 0.015 as a decimal) Initial speed: 65 mi/hr Reaction time: 1.5 seconds…

Q: Determining the Maximum Safe Speed on a Farm Road/Railroad Crossing. A two-lane road crosses an…

A: American Association of State Highway and Transportation Officials (AASHTO): A Policy onGeometric…

Q: A truck travels along a straight, level road at the speed of 79ft/sec. when the driver is forced to…

Q: an intersection with speed 45 mph. The road has a downhill grade of 1%. When the car is at a…

A: Using relation for stopping distance SSD=vt+v22gf±Gv=45mph=66ftsG=-1%=-0.01

Q: A car braked with a constant deceleration of 16 ft/sec^2, producing skid marks measuring 200 ft…

A: ASKED: To determine the speed of the car before the application of brakes. Given, Constant…

Q: What is the SSD of a driver/vehicle traveling at 40 mph along a 5% uphill? Assume general braking…

Q: QUESTION 2 An intersection has a speed limit of 35 mph and the intersection is 33 ft wide. Our…

Q: 2.32 A driver is traveling at 52 mi/h on a wet road. An object is spotted on the road 415 ft ahead…

Q: car is traveling downhill on a suburban road with a grade of 4% at a speed of 35 mph. Determine the…

Q: 2. The driver of a car, applied brakes and barely avoided hitting an obstacle on the road. The…

A: Skid length L=25 m, Speed V=55 km/h, Coefficient of friction f=0.5, Reaction time t=2.5 s, To Find-…

Q: Refer to the following illustration; veh#2 is driving with the speed of 60mph, following veh#1 whose…

A: Speed of vehicle 1, Speed of vehicle 2, Distance, Level grade.To find: Minimum distance between two…

Q: A car is traveling up a 2% grade at 70 mi/h on good, wet pavement. The driver brakes to try to avoid…

A: Given: The initial speed of the car is vi=70 mi/hr×52803600 ft/sec=102.66 ft/sec. The reaction time…

Q: 4. A car is traveling downhill on a suburban road with a grade of 4% at a speed of 35 mph. Determine…

A: stopping sight distance (SSD) One sort of sight distance utilized in road design is stopping sight…

Q: speed of 35 m/s. If the brakes are applied and the speed of the car is reduced to 10 mls in 15 s,…

A: using kinematic equation

Q: A driver on a level two-lane highway observes a truck completely blocking the highway. The driver…

A: According to given data A driver on a level two-lane highway observes a truck completely blocking…

Q: car is traveling up a 3% grade, with the speed of 85mph, on a road that has good, wet pavement. A…

A: Gradient = +3% Initial speed, vo = 85mph = [85 x 1.467] ft/sec Total distance covered in brake…

Concept explainers

Intersection Design

An intersection is a location where two or more roads or railways meet or join. The traffic movement is controlled at the intersection that depends on its design and type. It governs the operation, efficiency, speed, capacity, and safety of the highways, airways, and railways. The movement of the pedestrian causes hazards and delays at the intersection.

Question

Fill in the blanks
a)
b)
-1 attachment -
3. Situation: You are driving when suddenly you saw a cat crossing across the street
You applied the brakes of your car at 8 fps? to slow it down until it stops. After
456 ft, your car has come to a full stop. Determine:
a. How fast your car was traveling immediately before the brakes were applied
b. The time required for the car to stop

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

The design speed of a multilane highway is 65 mi/h. Determine the following. Note: The term a g in the appropriate equation is typically rounded to 0.35 in calculations. Assume perception reaction time = 2.5 sec. (a) the minimum stopping sight distance (in ft) that should be provided for a level roadway Your response differs from the correct answer by more than 10%. Double check your calculations. ft (b) the minimum stopping sight distance (in ft) that should be provided for a roadway with a maximum grade of 3 percent. Your response differs from the correct answer by more than 10%. Double check your calculations. ft
1. A car is approachin an intersection with velocity 35 mph. When the car is at a distance of 200 ft from the intersection, the signal turned yellow. If the driver decides to break, will he be able to stop safely? The driver's reaction time is 1.5 s. Assume the road surface as leveled. The maximum braking effort is applied. Will your answer change, if the grade of the road surface is downhill 3%? A car is at a distance of 200 ft from an intersection stop line when the signal turned yellow. What should be the minimum speed of the car (miles/hour) if the driver decides to apply brake and is just able to stop at the line? Use reaction time of 1.5 s and the road surface has zero grade.
What is the intersection sight distance (m) needed at a stop controlled intersection for a passenger car to turn left onto a 2-way, 4-lane road with a design speed of 80 km/h? Assume the vehicle turns into the closest lane. [round to the nearest meter] Response Feedback: ISD=0.278V t major g Remember, tg is increased by 0.5 seconds for the additional lane.
A driver with 20/20 vision traveling at 55 mph in the median lane desires to exit the freeway at the exit ramp. If 5-in. letters are used, what is the minimum distance the sign should be placed ahead of the ramp exit? (Some assumptions that would be helpful are perception-reaction time = 2 sec; exit speed = 30 mph; deceleration rate = 4.80 ft/s2 a driver with 20/20 vision can read a sign at 55 ft per inch of letter height.) Discuss your results.
II. A student trying to test the braking ability of her car determined that she needed 19.5 ft more to stop her car when driving downhill on a road segment of 5% grade than when driving downhill at the same speed along another segment of 3.5% grade. Determine the speed at which the student conducted her test and the braking distance on the 5% grade if the student is traveling at the test speed in the uphill direction. - 30 points
Calculate the passing sight distance on a two lane road having the design speed of 86 kmph and reaction time 2 sec. Assume one way traffic. Take acceleration of overtaking and overtaken vehicle as 3 m/s2 and 1.5 m/s2 respectively. Assume that overtaken vehicle starts accelerating after the reaction time of overtaking vehicle. Take space headway as 18 m.
Two cars,on a level surface, are approaching each other from the opposite directions at a speed of 120 kph and 90 kph respectively. The reaction time is 2.0 seconds. Compute the minimum sight distance required to avoid a head-on collision of the two cars. Use 2011 AASHTO formula.
1 CE122 Anser plsss
What distance will a vehicle travel before coming to a complete stop from a speed of 70 mph, (a) When the vehicle is traveling on a level roadway with no grade, (b-1) When the vehicle is traveling uphill on a roadway of constant grade = 0.10, (b-2) If the roadway grade is not constant but starts at 0.10 uphill and decreases to 0 at a continuous rate, would the braking distance be equal to, greater than, or less than that in the case of a constant 0.10 uphill grade (briefly explain why) (c) When the vehicle is traveling downhill on a roadway of constant grade = 0.10. Assume a perception-reaction time of 2.5 seconds, and an a/g value equal to 0.35.