Answer problems 2 and 3 please Problem 1. In deriving braking distance, we assume a constant acceleration/deceleration rate, a.In fact, AASHTO assumes constant acceleration a(t):= c (constant) in most of its designprocedures. Although this is not entirely true, distances required for acceleration or decelerationcan be realistic if appropriate values are chosen for the constant acceleration process. Linearacceleration a(t) = c₁t (t is time elapse and c₁ is jerk rate or rate of change) is a betterapproximation to the acceleration process.a) What is the practical stopping distance for a vehicle with initial speed 70 mph, if accelerationis described by a linear function of time using a(t) = -1.8t (t is time elapse in seconds).b) Use a constant acceleration rate to achieve the same stopping distance. What is this constantacceleration rate?Problem 2. A car hits a tree at an estimated speed of 25 mph on a 3 % upgrade. If skid marks of120 ft are observed on dry pavement (coefficient of braking friction, fo =0.35) followed by 250 ft(f =0.25) on a grass stabilized shoulder, estimate the initial speed of the vehicle just before thepavement skid began.Problem 3. Drivers must slow down from 60 mph to 40 mph to negotiate a severe curve on a ruralhighway. A warning sign is determined to be visible from 120 ft. away. How far must the sign belocated, in advance of the curve, to ensure that vehicles have sufficient distance to decelerate? Usethe standard reaction time and deceleration rate recommended by AASHTO for basic brakingmaneuvers.

Answered: Image /qna-images/answer/d6d3af4e-951e-46c8-a05f-a5040e6e2c45.jpg

In fact, AASHTO assumes constant accelerati procedures. Although this is not entirely true, dis can be realistic if appropriate values are choser acceleration a(t) = c₁t (t is time elapse and approximation to the acceleration process. a) What is the practical stopping distance for a v is described by a linear function of time using b) Use a constant acceleration rate to achieve th acceleration rate? Problem 2. A car hits a tree at an estimated speec 120 ft are observed on dry pavement (coefficient (f, 0.25) on a grass stabilized shoulder, estimate pavement skid began. Problem 3. Drivers must slow down from 60 mph highway. A warning sign is determined to be visit located, in advance of the curve, to ensure that veh the standard reaction time and deceleration rate maneuvers.

In fact, AASHTO assumes constant accelerati procedures. Although this is not entirely true, dis can be realistic if appropriate values are choser acceleration a(t) = c₁t (t is time elapse and approximation to the acceleration process. a) What is the practical stopping distance for a v is described by a linear function of time using b) Use a constant acceleration rate to achieve th acceleration rate? Problem 2. A car hits a tree at an estimated speec 120 ft are observed on dry pavement (coefficient (f, 0.25) on a grass stabilized shoulder, estimate pavement skid began. Problem 3. Drivers must slow down from 60 mph highway. A warning sign is determined to be visit located, in advance of the curve, to ensure that veh the standard reaction time and deceleration rate maneuvers.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Do not copy paste otherwise many down vote please define our language
Define hydrogeology.
I need a clear and fast answer within 20 minutes. Thank you
Write brief notes on the following: a, the technique of estimating mean depth and mean area; and b, technical sanction.
Help please.on A4 handwritten.
The vertical reaction at A is
Find the total area plz early i upvote definitely.
The Administrator or a representative may request to see: O Any photo identification. The remote pilot in command's remote pilot certificate. A record of recent flights, such as a logbook.
An isometric view of an object is shown below along with its top and front views. Circle the letter corresponding to the correct side view from the choices given. 1. 3. Name: |Class: ELS H A Section: 電話 A B Date: B 日: 4. 电田 ET 甲:: A Introduction to 3-D Spatial Visualization B 抽油 B Grade: Page 19
Q-2 Discuss various stages of preparation of a master plan? Subject: Architecture and town planning.
hi, show your solution. thank you so much for helping me.
" SANITARY PLANNING LAYOUT " D. ISOMETRIC PLUMBING LAYOUT