Consider the concrete beam created using the simulation software Ftool in

$(18$ marks$)$ Q$1.$

a$)$ Make the bending moment diagram and show its screenshot $(1$ marks$)$

As you move the cursor along the beam, the value of $"\backslash ($ X $\backslash )"$ at the bottom of the software changes. Get the values of $"\backslash ($ X $\backslash )"$ at different points mentioned below:$-$

b$)$ Give the value of maximum bending moment $($positive$)$ and its location from left. Show the value of maximum bending moment through calculation and compare these values $(3$ marks $+6$ marks$)$

c$)$ Give the value of minimum bending moment $($negative$)$ and its location from left $(3$ marks$)$

CRITICAL QUESTION

d$)$ Deduce via observation of the bending moment diagram and calculations, the point or location from left where the bending moments is zero $(5$ marks$)$