helpQuestion $2(20$ Marks$)$

Given the list of materials as shown in Table $1$;

Table $1$

a$.$ Determine area and section modulus for ONE type of material listed in Table $1$

a different section shape as shown in Table $2$ based on parameters provided

below;

$L=5\mathrm{.}5m$

$d=d_i=35mm$

$d_0=46mm$

$b=39mm$

$h=62mm$

$t=12mm$

Table $2$

b$.$ Analyze effective length, $P_{ct}$ for all the materials at four conditions below;

i$.$ Pfnned$/$Pinned

ii$.$ Fixed$/$Free

iii. Fixed$/$Fixed

iv$.$ Finned$/$Fixed