A 4-m-long rigid beam is supported by a pinned connection and cable as shown. The beam wei...

A 4-m-long rigid beam is supported by a pinned connection and cable as shown. The beam weighs 2.0 kN and hangs horizontally when unloaded. When the beam is not loaded the solid cable is 4.00 m long and has a solid area of 175 mm2. Steel used in the cable has a modulus of elasticity of 200 000 MPa. When loaded, the beam carries a 10-kN/m uniformly distributed load. Neglecting the weight of the cable, approximate the following:

(a) The change in length of the cable when the beam is under load

(b) The change in elevation of point B when the beam is under load