Steps for

Two rods, $AB$ and $BC,$ holds a lamp of

weight $40$ kg in place. The diameters of $AB$

and $BC$ are $10$ mm and $8$ mm respectively.

Determine the normal stresses in the rods.

Assume that the weights of the rods are

negligible compared to the weight of the

lamp. $(4\mathrm{.}03$MPa, $3\mathrm{.}93$MPa$)$