Problem $2$:

A $600$ mm diameter pulley driven by a horizontal belt transmits power through a solid

shaft to a $262$ mm diameter pinion which$-$drives a mating gear. The pulley weighs $1200$ N

to provide some flywheel effect. The arrangement of elements, the belt tensions, and the

components of the gear reactions on the pinion are as indicated in Fig. $2$ below.

Determine the necessary shaft diameter using a suitable value for commercial shafting

and shock fatigue factors of $Kb=2$ and $Kt=1\mathrm{.}5.$

Fig. $2($ I need a solution for this step by step $)$