Question: A wheel tractor - scraper is operating on a 3 % adverse grade. Assume that no power derating is required for equipment condition, altitude, and

A wheel tractor-scraper is operating on a 3% adverse grade. Assume that no power derating is required for equipment condition, altitude, and temperature. Use equipment data from Figure 6.10. Disregarding traction limitations, what is the maximum value of rolling resistance (in lb per ton) over which the empty unit can maintain a speed of 15 mph ?

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