The pin-connected assembly shown in the figure consists of solid aluminum [E = 71 Gpa] rods (1) and (2) and solid steel [E = 201 GPa] rod (3). Each rod has a diameter of 20 mm. Assume that a = 2.8 m, b = 1.6 m, and c = 0.5 m. If the normal stress in any rod may not exceed 155 MPa, determine
(a) the maximum load P that may be applied at A.
(b) the magnitude of the resulting deflection at A.
