In Figure P3.15, rigid bar ABC is supported by axial member (1), which has a cross-sectional area of 400 mm2, an elastic modulus of E = 70 GPa, and a coefficient of thermal expansion of . After load P...

In Figure P3.15, rigid bar ABC is supported by axial member (1), which has a cross-sectional area of 400 mm2, an elastic modulus of E = 70 GPa, and a coefficient of thermal expansion of
. After load P is applied to the rigid bar and the temperature rises 40°C, a strain gage affixed to member (1) measures a strain increase of 2,150
. Determine

(a) the normal stress in member (1).

(b) the magnitude of applied load P.

(c) the deflection of the rigid bar at C.