FIDENTIAL

B$.$cany$)$

$($i$)L=750mm$

maks$)$

$($ii$)L=300mm$

Anster the following questions.

When deriving a simple theory to describe the behaviors of a uniform oi subjected to torques, it is necessary to make a few basic assumptions. Sta of these assumptions. and inside diameter of $\frac{d_2}{(mm)}=104$ and $\frac{d_1}{mo}=82mm,$ respectively. hollow pole has length of $2\mathrm{.}75$ m and shear modulus, $G=28$GPa.

if the aluminium hollow pole is twisted in pure torsion by $t$ ends, determine the angle of twist $($in degrees$)$ when the $m$ is $48$ MPa $.$