A rack is being designed to support large sections of pipe, as shown in Figure. Each pipe...

A rack is being designed to support large sections of pipe, as shown in Figure. Each pipe exerts a force of 2500 lb on the support arm. The height of the arm is to be tapered as suggested in the figure, but the thickness will be a constant 1.50 in. Determine the required height of the arm at sections B and C, considering only bending stress. Use AISI 1040 hot-rolled steel for the arms and a design factor of 4 based on yield strength.

FIGURE Pipe Storage rack for Problem