Final answer:
The minimum width of a light trades scaffold under 4 feet high depends on OSHA guidelines, which are not specified in the answer options. However, for the provided scaffolding physics problem, tensions in the cables and the mass of the equipment can be determined by applying static equilibrium conditions.
Step-by-step explanation:
To answer the question regarding the minimum width of a light trades scaffold platform less than 4 feet high, none of the provided options (A) 6', (B) 8', (C) 10', or (D) 12' are accurate. Scaffold standards are typically regulated by OSHA, and specific minimum widths can depend on the regulations set forth in your country or state.
However, in the context of the uniform 40.0-kg scaffold problem provided for reference, we can address the question of finding the tensions in the cables and the mass of the equipment. We are given that an 80.0-kg painter stands 1.0 m from the left end of the scaffold, and his painting equipment is 1.5 m from the right end, and that the tension in the left cable is twice that in the right cable.
By applying physical principles, specifically the static equilibrium conditions that sum of all forces and moments must equal zero, the problem can be solved. For this scenario, the moments about any point on the scaffold can be set equal to zero to solve for the unknown tensions and mass of the equipment.