Principles of Highway Engineering and Traffic Analysi (NEW!!)
6th Edition
ISBN: 9781119305026
Author: Fred L. Mannering, Scott S. Washburn
Publisher: WILEY
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Chapter 2, Problem 2P
To determine
Distance back from the front axle to center of gravity that would ensure the maximum tractive effort developed for front and rear-wheel drive options is equal.
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Determine the horsepower produced by a passenger car traveling at a speed of 65 mi/h on a straight road of 5% grade with a smooth pavement. Assume the weight of the car is 4000 lb and the cross-sectional area of the car is 40 f t 2.
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Determine the horsepower produced by a passenger car travelling at a
speed of 68 mi/hr on a radius of curvature of 1,200 ft road of 4% grade
with a smooth pavement. Assume the weight of the car is 4500 lb and the
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Chapter 2 Solutions
Principles of Highway Engineering and Traffic Analysi (NEW!!)
Ch. 2 - Prob. 1PCh. 2 - Prob. 2PCh. 2 - Prob. 3PCh. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - Prob. 6PCh. 2 - Prob. 7PCh. 2 - Prob. 8PCh. 2 - Prob. 9PCh. 2 - Prob. 10P
Ch. 2 - Prob. 11PCh. 2 - Prob. 12PCh. 2 - Prob. 13PCh. 2 - Prob. 14PCh. 2 - Prob. 15PCh. 2 - Prob. 16PCh. 2 - Prob. 17PCh. 2 - Prob. 18PCh. 2 - Prob. 19PCh. 2 - Prob. 20PCh. 2 - Prob. 21PCh. 2 - Prob. 22PCh. 2 - Prob. 23PCh. 2 - Prob. 24PCh. 2 - Prob. 25PCh. 2 - Prob. 26PCh. 2 - Prob. 27PCh. 2 - Prob. 28PCh. 2 - Prob. 29PCh. 2 - Prob. 30PCh. 2 - Prob. 31PCh. 2 - Prob. 32PCh. 2 - Prob. 33PCh. 2 - Prob. 34PCh. 2 - Prob. 35PCh. 2 - Prob. 36PCh. 2 - Prob. 37PCh. 2 - Prob. 38PCh. 2 - Prob. 39PCh. 2 - Prob. 40P
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- please solve correctarrow_forward3. Determine the horsepower produced by a truck traveling at a speed of 82 km/h on a curved road (having curve radius of 82 ) with 2.5% grade with a smooth pavement. Assume the weight of the car is 1921 kg and the dimensions (front dimensions) of the car is 252 cm by 142 cm.arrow_forwardQuestion-- A vehicle is moving on a road of grade +4% at a speed of 20 m/s. Consider the coefficient of rolling friction as 0.46 and acceleration due to gravity as 10 m/s². On applying brakes to reach a speed of 10 m/s, find the required braking distance along the horizontal.arrow_forward
- 3. Determine the horsepower produced by a truck traveling at a speed of BF km'h on a curved road (having curve radius of 8E) with 2.5% grade with a smooth pavement. Assume the weight of the truck is 19FD kg and the dimensions (front dimensions) of the truck is 25F cm by 14E cm. BF= 45 8E= 82 19FD= 1950 25F = 255 14E = 142arrow_forwardA 12.5 kN car has a 2250 mm wheelbase, with its center of gravity located 550 mm from the pavement and 1150 mm behind the front axle. 3 people weighing on average 95 kg loaded the vehicle, shifting the center of gravity 115 mm nearer to the rear axle. What is the maximum tractive effort (N) that can be developed if the car is a rear wheel drive? Use coefficient of road adhesion= 0.46.arrow_forwardThe 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 8 seconds to bring the rig (truck and trailer) to a stop from a speed of 32 mi/hr down the 5-percent grade, determine the force P in the coupling between the trailer and the truck. The truck weighs 19,000 lbs and the trailer weighs 15,000 lbs. State whether the coupling is in tension or compression.arrow_forward
- III. Determine the horsepower produced by a passenger car travelling at a speed of 68 mi/hr on a radius of curvature of 1,200 ft road of 4% grade with a smooth pavement. Assume the weight of the car is 4500 lb and the cross sectional area of the car is 45 ft².arrow_forwardThe motorcycle is traveling at 1 m/s when it is at A. If the speed is then increased at ?=0.1m/s². Determine its speed and acceleration at the instant t=5s. Please show detailed solution. Thank you.arrow_forward35. Determine the minimum speed of a car at the point the brakes are immediately applied to avoid a collision based upon a yaw mark chord measuring 70.4 feet and a middle ordinate measuring 6 feet. The drag factor C² M of the road surface is 1.4 (Use-Mand S=√15fr ) A. 34.2 MPH B. 9.9 MPH C. 16.4 MPH D. 47.2 MPHarrow_forward
- Write your step by step solutions.arrow_forward19 190 A car travelling at 40 mph on uphill grade of 5%. If the brakes are suddenly applied, it will travel 56 m. then stops. Determine the coefficient of friction between the road surface and the tires. Round off your answer to two decimal places.arrow_forwardRead the question carefully and give me right solution with clear calculationsarrow_forward
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