A mass m is movably mounted on a beam of length L, which is to be regarded as massless, and is moved along its longitudinal axis during operation. The position is described by the coordinate x. The beam is supported by means of three rods, which can also be regarded as massless. The beam is inclined relative to the horizontal by the angle . Given: m = 300 kg; L = 4 m; = 30; = 60; g = 10 N/kg

a) Determine the maximum bending moment occurring in the beam. b) How large is the bending moment occurring in the bars? Justify your answer clearly and comprehensibly.