given below, when it is hauling a load of 22 tons up a 6% grade on a haul road having a rolling resistance of 60 lb per ton: Engine: 239 fwhp Capacity: Struck, 14.7 cu yd Heaped, 2:1, 18.3 cu yd Net Weight (empty) = 36,860 lb Payload = 44,000 lb 6 9% 20 60