Question: 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

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 = 40.0 tons; fully loaded weight = 90.0 tons) must travel up a 3.5% slope on a muddy haul road.
  • The average tire penetration of the machine is estimated to be 4.0 inches.
  • After dumping the loaded weight, the scraper returns downhill with an empty weight.

Type all your work with a final answer to each question below.

Q1) What is the total resistance force in lb. that the machine is going uphill?

Q2) Determine the effective grade (%) for the total resistance of going uphill?

Q3) What is the total resistance force in lb. that the machine is coming downhill?

Q4) Determine the effective grade (%) for the total resistance of coming downhill?

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