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Q1. A horizontal cantilever beam is 2.8 m long. It carries a concentrated load of 2400 N at its free end and a uniformly distributed load of 360 N/m over its entire length. The beam has a hollow rectangular cross-section with outside dimensions of 100 mm wide by 150 mm deep and a constant thickness of 14 mm. Calculate EACH of the following:

(a) The maximum bending stress in the beam;

(b) The total deflection at the free end of the beam.

Note: d = WL3/ 3EI for a concentrated load where W = concentrated load (N)

d = wL4 / 8EI for a distributed load where w = distributed load (N/m)

Modulus of Elasticity for beam material = 210 GN/m2