This is a resistance calculation problem for construction equipment. Given facts shown below, answer the four questions: Facts: A fully loaded wheeled scraper (empty weight = 50.0 tons; fully loaded weight = 85.0 tons) must travel up a 3% slope on a muddy haul road. The average tire penetration of machine is estimated to be 5.5 inches. After dumping the loaded weight, the scraper returns downhill with an empty weight. . . Q3) What is the total resistance force in Ib. that the machine is coming downhill? I Q4) Determine the effective grade (%) for the total resistance of coming downhill