Q$1($b$)$ A simply supported beam carries two forces of $800N$ and $500N$ at a

distance of $2m$ and in the middle of the beam respectively. Length of the

beam is $6m.$ Perform the following;

i$.$ Draw the physical diagram of the beam with required details;

ii$.$ Draw the free body diagram of the beam with required details;

iii. Draw the bending moment diagram;

iv$.$ Determine maximum bending stress if the area of cross section

is circle with diameter of $20mm.$