At what point on expressway should motorist step on brakes

Assignment Help Civil Engineering
Reference no: EM13308456

A motorist traveling at 55 mph on an expressway intendeds to leave the expressway using an exit ramp with a maximum allowable speed of 30 mph. At what point on the expressway should the motorist step on her brakes in order to reduce her speed to the maximum allowable on the ramp just before entering the ramp? Assume that the coefficient of skidding friction between the tires and pavement is 0.3 and that the alignment of this section of the road is flat and level?

Reference no: EM13308456

Questions Cloud

What is the hydroxide-ion concentration of this solution : A solution has a hydronium-ion concentration of 1.0 x 10^-3 mol per liter. What is the hydroxide-ion concentration of this solution
Determine the current and power : Assume that a 16 volt energy source is in a circuit that has a resistance of 10 ohms. Determine the current and power
What mass of the isotope will be left : An isotope of the element Thallium, Tl-206, undergoes beta decay with a half life of 3.1 minutes. what mass of the isotope will be left after 9.3 minutes have elapsed
Create a worksheet that computes membership costs : Create a worksheet that calculates membership costs for Buff and Tuff Gym. You will create functions that determine costs based on a condition, lookup membership rates and fees, and calculate monthly payments. You will also create functions that ..
At what point on expressway should motorist step on brakes : At what point on the expressway should the motorist step on her brakes in order to reduce her speed to the maximum allowable on the ramp just before entering the ramp
What effect will this have on price : Suppose both supply and demand decrease. What effect will this have on price and the government sets a price floor of $30 and agrees to purchase all surplus at $30 per unit
How fast was the car traveling before applying the brakes : The vehicle was estimated to hit the light pole at 30 mph. The skid was 650 feet long. How fast was the car traveling before applying the brakes
Write the definition of the function : Write the definition of the function, nodeCount, that returns the number of nodes in a binary tree. Add this function to the classbinaryTreeType and create a program to test this function.
Find the height and the width of the triangular soil bank : The soil's angle of repose is 35° and its swell is 25%. Find the height and the width of the triangular soil bank that will result from the trench excavation

Reviews

Write a Review

Civil Engineering Questions & Answers

  Determine the magnitude of the acceleration of the particle

A particle is traveling along a circular curve having a radius of 13 m. If it has an initial speed of 21m/s and then begins to decrease its speed at the rate of at = (-0.25s)m/s2

  Find shape factor in shear for a rectangular cross-section

The "Shape Factor" of a cross-section of a beam is defined as the fully plastic strength divided by the force or moment causing first yield. Thus the Shape Factor for bending is Mp/My and similarly for shear, is Vp/Vy.

  Determine what is the overflow rate of each tank

two sedimentation tanks operate in parallel. The combined flow to the two tanks is .1 m^3/s. the depth of each tank is 2 m and each has a detention time of 4 h.

  Design torsion reinforcement in rectangular and flanged beam

Write a user friendly computer program to design torsion reinforcement in rectangular and flanged beams, and plot the cross-sectional reinforcement details on a graphic plotter

  How to design a horizontal curve for a two-lane road

design a horizontal curve for a two-lane road. The road has 12-ft. lanes. Due to expansive excavation, it is determined that a maximum of 34 ft. can be cleared from the road's centerline toward the inside lane to provide for stopping sight distanc..

  Explain transportation network

Transportation network, A power generator at a dam can send 300 megawatts to substation 1, can send 200 megawatts to substation 2, and can send 250 megawatts to substation 2

  Determine the velocity in horizontal x-y plane

A particle with a mass of 0.5 kg has a velocity of 10 m/s in the x-direction at time t = 0. Forces F1 and F2 act on the particle, and their magnitudes change with time according to the graphical force-time history shown.

  Determine how much water was lost to the atmosphere

If a certain watershed received 1,250 mm of rain during a year, stored 150 mm of water in its soil mantle, and lost 400 mm of water downstream, how much water (in mm) was lost to the atmosphere (mainly through plants)

  Determine the practical moment strength phi-msubn for steel

determine the practical moment strength phi x Msubn for a rectangular reinforced concrete cross section having a width (b of 13 in.) and an effective depth (d of 24 in.) The tension reinforcing steel is four no# 8 bars.

  How much more flow in cfs will be attained with project

If a 96-inch brick sewer (n = 0.015) is laid on a slope of 0.01% is set to be rehabilitated with GIPL (n = 0.01) that will need 2-inches all around it. How much more flow, in cfs will be attained with this project

  Determine what is the total resistance of a wheel tractor

a wheel tractor scraper weighing 100 tons is being operated on a haul road which is a rutted dirt roadway (little maintanence) this tractor is traveling empty down a 5% slope. what is the total resistance

  Determine what should the sample volume be

The dissolved oxygen of sample water is 1.5 mg/L. At 25 C, the dissolved oxygen of the dilution water is 8.25 mg/L. You are told the BOD5 of the sample is 130 mg/L. You have a target final dissolved oxygen of 3.0 mg/L (give yourself some leeway).

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd