Railroad ties must be designed to resist large shear loadings. If the tie is subjected to the 34-kip rail loadings and an assumed uniformly distributed ground reaction, determine the intensity w for equilibrium, and calculate the maximum shear stress in the tie at section a€“a, which is located just to the left of the rail.

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34 kip 34 kip -1.5 ft-| -1.5 ft – -3 ft -1.5 ft 6 in. -8 in.-