The hydraulic braking system for the truck and trailer is set to produce equal braking forces for the two units Chapter 3, Problem 3/199The hydraulic braking system for the truck and trailer is set to produce equal braking forces for the two units. If the brakes are applied uniformly for 9 seconds to bring the rig to a stopfrom a speed of 35 mi/hr down the 10-percent grade, determine the magnitude of the force P in the coupling between the trailer and the truck. The truck weighs 16,000 lb and thetrailer weighs 12,000 lb.35 mi/hr10100Answer: P =the tolerance is +/-2%lb

Answered: Chapter 3, Problem 3/199 The hydraulic…

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter21: Pavement Management

Section: Chapter Questions

Problem 10P

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A 2500-lb passenger vehicle originally traveling on a straight and level road gets onto a section of the road with a horizontal curve of radius = 850 ft. If the vehicle was originally traveling at 55 mi/h, determine (a) the additional horsepower on the curve the vehicle must produce to maintain the original speed, (b) the total resistance force on the vehicle as it traverses the horizontal curve, and (c) the total horsepower. Assume that the vehicle is traveling at sea level and has a front cross-sectional area of 30 ft2. Show your solutions and answers.

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