The trailer hitch shown in Figure and Figure 1-1 (p.11) has loads applied as shown. The tongue weight of 100 kg acts downward and the pull force of 4905N acts horizontally. Using the dimensions of the ball bracket shown in Figure-5 (p. 14) and Sv = 300 MPa ductile steel, determine static safety factors for (a) The shank of the ball where it joins the ball bracket. (b) Bearing failure in the ball bracket hole. (c) Tearout failure in the ball bracket. (d) Tensile failure in the attachment bolts if they are 19-nnn dia. (e) Bending failure in the ball bracket as a cantilever.

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