A fully loaded wheeled scraper (Model #: 615C) must travel down a 3% slope on an unmaintained hard road (tire penetration is 5 inches and the coefficient of traction is estimated to be 0.45 when traveling downhill, tire penetration is 3 inches and the coefficient of traction is estimated to be 0.45 when traveling uphill), and then return to the same location. Only the front tires of this scraper are powered, and you can obtain the following information from the manufacturer's data. Empty vehicle weight: 97,000 lb; Fully loaded vehicle weight: 172,000 lb; When empty, 37% of the weight on the rear tires, 63% on the front tires; When fully loaded, 50% of the weight on the rear tires, 50% on the front tires; What is the total resistance force when traveling downhil wth y loeded? Select one: O a. 11,180 lbs. o b. 12,125 lbs. OC. 21,500 Ibs. n d. 15.289 lbs.
A fully loaded wheeled scraper (Model #: 615C) must travel down a 3% slope on an unmaintained hard road (tire penetration is 5 inches and the coefficient of traction is estimated to be 0.45 when traveling downhill, tire penetration is 3 inches and the coefficient of traction is estimated to be 0.45 when traveling uphill), and then return to the same location. Only the front tires of this scraper are powered, and you can obtain the following information from the manufacturer's data. Empty vehicle weight: 97,000 lb; Fully loaded vehicle weight: 172,000 lb; When empty, 37% of the weight on the rear tires, 63% on the front tires; When fully loaded, 50% of the weight on the rear tires, 50% on the front tires; What is the total resistance force when traveling downhil wth y loeded? Select one: O a. 11,180 lbs. o b. 12,125 lbs. OC. 21,500 Ibs. n d. 15.289 lbs.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A fully loaded wheeled scraper (Model #: 615C) must travel down a 3% slope on an unmaintained
hard road (tire penetration is 5 inches and the coefficient of traction is estimated to be 0.45 when
traveling downhill, tire penetration is 3 inches and the coefficient of traction is estimated to be 0.45
when traveling uphill), and then return to the same location. Only the front tires of this scraper are
powered, and you can obtain the following information from the manufacturer's data.
Empty vehicle weight: 97,000 lb;
Fully loaded vehicle weight: 172,000 lb;
When empty, 37% of the weight on the rear tires, 63% on the front tires;
When fully loaded, 50% of the weight on the rear tires, 50% on the front tires;
What is the total resistance force when traveling downhill with fully loaded?
Select one:
O a. 11,180 lbs.
o b. 12,125 lbs.
O c. 21,500 Ibs.
o d. 15,289 Ibs.
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