Both the straight and semicircular members shown in Fig. P8.22 are two-force mem­bers. and...

Both the straight and semicircular members shown in Fig. P8.22 are two-force mem­bers. and hence either can be used as members of a truss. However, it is most common that truss members are straight. Compare the answers to Prob. 8.21 (which are given in the problem description) to argue why straight truss members are preferable to curved truss members.

Note: Concept problems are about explanations, not computations.

Figure P8.22