Question

A simply supported beam of span l carries a concentrated load w at its mid-span. The maximum bending moment m is

Answer 1

Answer:

Explanation:

D will have points of contraflexure, where the bending moments will sum to zero and there is no resultant bending of the beam.

This is because the load is zero at the end (at maximum distance) and is uniformly increasing towards the support, as the distance decreases. Moment = load * distance.