Let the crane hook in Figure E9.3 have a trapezoidal cross section as shown in row (c) of...

Let the crane hook in Figure E9.3 have a trapezoidal cross section as shown in row (c) of Table 9.2 with (see Figure P9.8) a = 45 mm, c = 80 mm, b1 = 25 mm, and b2 = 10 mm. Determine the maximum load to be carried by the hook if the working stress limit is 150 MPa.

FIGURE E9.3: Crane hook

Table 9.2