The car is traveling at 48 km/h when the traffic light 90 mahead turns yellow. The drivertakes one second to reactbefore he applies the brakes.(a) After he applies the brakes,what constant rate ofdeceleration will cause the carto come to a stop just asit reached the light?(b) How long does it take thecar to travel the 90 m? RECILINEAR MOTION:1. The car is traveling at 48 km/h when the traffic light 90 mahead tums yellow. The drivertakes one second to reactbefore he applies the brakes.(a) After he applies the brakes,what constant rate of48 km/hdeceleration will cause the car90 mto come to a stop just asit reached the light?(b) How long does it take thecar to travel the 90 m?

Given Data : velocity of car =48 km/h the traffic light 90m ahead turns yellow.

The car is traveling at 48 km/h when the traffic light 90 m ahead turns yellow. The driver takes one second to react before he applies the brakes. (a) After he applies the brakes, what constant rate of deceleration will cause the car to come to a stop just as it reached the light? (b) How long does it take the car to travel the 90 m?

The car is traveling at 48 km/h when the traffic light 90 m ahead turns yellow. The driver takes one second to react before he applies the brakes. (a) After he applies the brakes, what constant rate of deceleration will cause the car to come to a stop just as it reached the light? (b) How long does it take the car to travel the 90 m?

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter7: Intersection Design

Section: Chapter Questions

Problem 27P

See similar textbooks

Related questions

Q: Apply this to the special case b;=3 m, b2=2 m, and y,=1.9 m. a) Find the flow rate if y2=1.5 m. b) A...

A: Given - To Find - a - find flowrate if y2 = 1.5mb- Find the depth y2

Q: -Use Slope-Deflection Method to solve for the unknowns on the 120mm x 120mm beam shown in the figure...

Q: The piping system shown in the figure below must be able to carry a large transverse load P applied ...

Q: What is the depth of water in a trapezoidal channel with z=2 and carrying a 2.5 m3/s water flow? The...

Q: Consider particles in suspension and their settling behaviour at different concentrations select the...

A: Discrete settling is the sedimentation of particles in a low-solids-concentration suspension. Grit i...

Q: Q-4: Following observations were made for conducting a water budget of a reservoir over a period of ...

Q: A 16 mm thick tension member is connected by two 6.25 mm spliced plates as shown. The tension member...

Q: Determine degree of static indeterminacy

A: Given data : The number of member in beam (m)=3 The number of joint in beam (J)=4 Support type=1 pin...

Q: Q3. Find out the support reactions, by using energy methods. M, EI A C 2L

Q: Q1) Slab system consist of two-way slab panels shown in Figure below, subjected to superimposed dead...

A: Step 1 Given Dead load = 2KN/m2 Beam dimensions, bw=350mm, h=750mm column dimensions = 350×350mm,...

Q: Use Virtual Work Method to answer the questions below considering the truss shown in the figure. Ass...

Q: A solid cylinder of length L, diameter D, and specific gravity 0.6 floats in neutral equilibrium in ...

Q: Find the discharge i8 Area f retanjular channel 20 mt and uelocity of water Vs

A: Introduction : The given question is related with fluid mechanics . In this question we are provided...

Q: Determine the shear flow for a closed box beam, with t = 1 mm and F = 2000 N F= 2000 N 48t 60t

Q: Use Virtual Work Method to answer the questions below considering the truss shown in the figure. Ass...

Q: If the mass flow rate of steam is 11 kg/s in steadystate turbine, find the shaft output (W) in kW

A: STEAM PROPERTIES:

Q: CUMULATIVE CUMULATIVE SIEVE AMOUNT AMOUNT PERCENT RETAINED, PERCENT PASSING SIZE RETAINED, g (a) RET...

Q: A 10 m cantilever beam has a uniform load of 2.5 KN/m from left to right end. Find the maximum defle...

A: Given data : Length of cantilever beam L=10 m Uniform load q=2.5 KN/m Modulus of elasticity=E Moment...

Q: e column is subjected to an axial force of 8 kN, which is applied through the centroid the cross-sec...

Q: An equilateral triangulated 2D truss as shown below is subjected to a load 20 kN at B. The force (in...

Q: Engineering Departmer Q14. An object with an initial velocity of 5 m/s moves in a straight line unde...

A: Given data : Initial velocity=U U=5 m/s Final velocity=V V=15 m/s Time=t t=4 s

Q: A rigid bar of weight W = 800 N hangs from three equally spaced vertical wires (length L =150 mm, sp...

A: Given:- W=800N Es = 210 GPa and Ea = 70 GPa da = 4 mm L =150 mm, spacing a = 50 mm To find:- (a) Wha...

Q: Find the coefficient of consolidation in cm2/s considering Casagrande's logarithm of time fitting me...

A: Given values- Soil layer depthH=20mBoth way drainage, hence d=H2=10 mCasagrande's Logarithm of time ...

Q: A westbound section of freeway currently has three 12-ft wide lanes, a 6-ft right shoulder, and no r...

A: LOS: LOS is referred to as the Level of Service in Highway. It explains the quality of the traffic w...

Q: Situation 1: A spillway controls a reservoir 4.60 hectares in area. The permanent crest is at elevat...

Q: Cueston- Calculote min sp auied to ovoiolo heod on Oollison of fwo Curs oPProhing from the opposite ...

A: Given data V1 = 90 Km/h V2 = 60 Km/h t = 2.5 sec f = 0.7 Braking efficiency (η) =50% =0.5( note that...

Q: 20KN/m I I JB A 3m

Q: The cross section of a steel beam is constructedof a W 18 × 71 wide-flange section with a 6 in. × 1/...

A: Given:- W18 x 71 To find:- The orientation of the neutral axis andThe maximum tensile stress σt and ...

Q: For the beam loaded as shown in the figure below, determine the following unknowns using Moment Dist...

A: As per guidelines we need to answer only first 3 subparts of questions so please repost rest questio...

Q: A 30 cm diameter concrete pile is driven into a homogeneous consolidated clay deposit (C, = 40 kPa, ...

Q: he maximum allowable value of T considering the given maximum permissible angle of twist for the ent...

Q: A simple beam AB supports two connectedwheel loads 3P and 2P that are a distance d apart (seefigure)...

A: Given:- P =12 kN, d = 2 m, and L =15 m To find:- (a) Determine the distance x that will produce t...

Q: 15 kN 10 kN 6 kN D E 0.4 kN/m 4 m 7 m 6 m 8 m

Q: A beam of a T cross section is formed by nailing together two boards having the dimensions shown in ...

A: what is the maximum allowable nail spacing s?

Q: A liquid compressed in a cylinder has a volume of 1000 cm3 at 0.95 MN/m2 and a volume of 1000 cm3 at...

Q: A hydraulic ram 320 mm in diameter and 1.4 m long moves wholly within a concentric cylinder 320.4 mm...

Q: Use Slope-Deflection Method to solve for the unknows on the 120mm x 120 mm beam shown in figure. E =...

Q: Two students, named Lenlen and Ferdie were asked by their teacher Juan to carry two boxes across an ...

Q: b 2 m 3 m V 12 kN 4@4 m = 16 m

Q: Two distances of 20 m and 100 m were accurately measured out with the help of a tacheometer and the ...

Q: Problem 5 circular channel 2.4 m in diameter if the uniform flow rate is 3.6 m/s. The bottom is laid...

Q: noving at 15 m/s. alculate is momentum.

A: Given data - Mass(m) = 600kg Velocity (v) = 15m/s

Q: A single stage standard rate trickling filter treats a flow of 3.79 MLD of sewage with BOD of 156 mg...

Q: A clay has the following Atterberg Limits: LL 24% %3D PL 13% SL 4% The clay shrinks from 10.65 cm^3 ...

A: To determine: plasticity index specific gravity of clay solids shrinkage ratio Given, Liquid Lim...

Q: The inflation pressure of a wheel is 60 psi and the wheel load is 36 k The radius of contact area un...

Q: * :Double refraction of light occurs as it passes through Fluorite Apatite Calcite * The ratio of vo...

A: This question is related to the Soil Properties from Geotechnical Engineering.

Q: Determine the ratios of the weights of fourbeams that have the same length, are made of thesame mate...

A: Given:- Four beams have the same length, are made of the same material To find:- ratio of weight

Q: P3) A free water jet of 75 mm diameter and 30 m/s velocity impinges on a series of hemispherical cup...

Q: How to design Building Water Supply systems? a. Cold Water System b. Hot Water System How t...

A: Explanation- Sewer System Design The sewer system is critical to a country's economic success. Sewer...

Q: b a 2 m 3 m ' 12 kN 4@4 m = 16 m %3D

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

The car is traveling at 48 km/h when the traffic light 90 m

ahead turns yellow. The driver

takes one second to react

before he applies the brakes.

(a) After he applies the brakes,

what constant rate of

deceleration will cause the car

to come to a stop just as

it reached the light?

(b) How long does it take the

car to travel the 90 m?

RECILINEAR MOTION:
1. The car is traveling at 48 km/h when the traffic light 90 m
ahead tums yellow. The driver
takes one second to react
before he applies the brakes.
(a) After he applies the brakes,
what constant rate of
48 km/h
deceleration will cause the car
90 m
to come to a stop just as
it reached the light?
(b) How long does it take the
car to travel the 90 m?

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 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

A 15-ft-long, 6-ft-high rectangular tank open to the atmosphere is towed by a truck on a level road. The tank is filled with water to a depth of 5 ft. Determine the maximum acceleration or deceleration allowed if no water is to spill during towing. a)4.29 b)7.02 c)6.45 d)5.2e
A car running at 80kph saw an oil truck in an accident 250 meters away. At the same time the truck is spilling oil causing a 60% reduction of friction. If initial f=0.30 a) will the car hit the obstruction? b) assuming that the tires would be replaced in such a way that the f=0.70, how much distance will the car have away from the obstruction? c) If the obstruction is 120m away and the oil did not spill, what would have been a safe speed at which the car will not hit the obstruction from 10m away assume f=0.3
On a certain stretch of track, trains run at 60 kph. How far back of a stopped train should be a warning torpedo be placed to signal an oncoming train? Assume that the brakes are applied at once and retard the train at the uniform rate of 2 ft/sec.
Compute the minimum passing sight distance forthe following data. Speed of passing car – 90kph Speed of overtaken vehicle – 80 kph Time of initial maneuver – 4 sec Ave. acceleration – 2.4 kph/sec2 Time passing vehicle occupies left lane – 9 sec Distance between passing vehicle at the end of its maneuver and opposing vehicle – 80 m
A truck travels along a straight, level road at the speed of 76ft/sec. when the driver is forced to apply the breaks to avoid an accident. If the truck undergoes a constant deceleration of 6ft/sec2, how far does the truck travel before coming to a complete stop?
Determine the required total passing sight distance for the following: Speed of the passing car = 100 kph; Speed of the overtaken vehicle = 80 kph; Time of initial maneuvers = 5 sec; Time passing vehicle occupies left lane = 10 secs; Distance between the passing car and opposing car at the end of maneuver = 20 m; Average acceleration = 2.5 kph/sec. a. 502.75 m b. 602.75 m c. 702.75 m d. 402.75 m
Car A is traveling at a constant speed vA = 127 km/h at a location where the speed limit is 100 km/h. The police officer in car P observes this speed via radar. At the moment when A passes P, the police car begins to accelerate at the constant rate of 5.0 m/s2 until a speed of 171 km/h is achieved, and that speed is then maintained. Determine the distance s required for the police officer to overtake car A. Neglect any nonrectilinear motion of P.
Compute the minimum passing sight distance for the following data: Speed of the passing car = 90kph Speed of the overtaken vehicle = 80kph Time of initial maneuver = 4 sec Average acceleration = 2.4 m/sec2 Time the passing vehicle occupies the left lane = 9sec Distance between the passing vehicle at end of its maneuver and the opposing vehicle = 80m
Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. The car has a forward acceleration of a = 4.7 m/s2 without slipping its 630-millimeter diameter tires. Determine (a) the velocity (v) of the car when point P at the tire (corresponding to θ = 43° as shown) has zero horizontal component of acceleration. Also, compute for (b) the total acceleration at point P.NOTE: Use purely RMA Method for velocity and acceleration calculations.
COMPUTE THE MINUMUM PASSING SIGHT DISTANCE FOR THE FOLLOWING DATA: SPEED OF THE PASSING CAR = 90 KPH SPEED OF THE OVERTAKEN VEHICLE = 80 KPH TIME OF INITIAL MANEUVER = 4 SEC AVERAGE ACCELERATION = 2.4 KPH/SEC TIME PASSING VEHICLE OCCUPIES THE LEFT LANE = 9 SEC DISTANCE BETWEEN THE PASSING VEHICLE AT THE END OF ITS MENEUVER AND THE OPPOSING VEHICLE = 80 KPH
Two vehicles, one operated by a human and the other computer controlled, are traveling on a level highway. If the autonomous vehicle is traveling at 70 mi/h, and it receives information at a frequency of 10Hz to respond, what is the maximum speed the human-controlled vehicle can travel and have a practical stopping distance that does not exceed that of the autonomous vehicle? (Assume that grade is zero, driver’s reaction time is 1.5s and autonomous vehicle can decelerate at 15.5ft/s2 )?
A 2000-lb bike with a rear wheel drive has awheelbase of 10 ft. The c.g. is 3 ft above thepavement and 4 ft ahead of the rear wheels.The coefficient of friction is 0.60 between thetires and the pavement. Determine the maximum acceleration theauto could have when moving along a levelground.a. 40.21 ft/s2 b. 42.90 ft/s2c. 43.56 ft/s2 d. 45.02 ft/s2