Question: A crawler tractor weighing 8 0 , 0 0 0 l b is towing a rubber - tired scraper weighing 1 5 0 , 0

A crawler tractor weighing 80,000lb is towing a rubber-tired scraper weighing 150,000lb up a grade of 5% at an altitude of 10,000ft. The tire penetration of the scraper is 2.5 inches. Calculate the minimum coefficient of traction for the tractor to perform the work. (note: 1ton=2,000lb)
A crawler tractor weighing 8 0 , 0 0 0 l b is

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