A rigid bar ABCD is supported by two bars, as shown in Figure P2.4. There is no strain in the vertical bars before load P is applied. After load P is applied, the normal strain in rod (1) is 570 m/m....

A rigid bar ABCD is supported by two bars, as shown in Figure P2.4. There is no strain in the vertical bars before load P is applied. After load P is applied, the normal strain in rod (1) is
570
m/m. Determine

(a) the normal strain in rod (2).

(b) the normal strain in rod (2) if there is a 1-mm gap in the connection at pin C before the load is applied.

(c) the normal strain in rod (2) if there is a 1-mm gap in the connection at pin B before the load is applied.