Attaching The Mast#

A common problem when assembling a mining drill is attaching the mast tower. A common method to attach the mast is to attach a chain to the feed cylinders and spin the mast up. If the feed cylinder lowers at a rate of $v_1=params.v\mathrm{m}/\mathrm{s}$, then what is the angular speed the tip of the tower is moving at in the instant shown? The distance from the chain to the pivot tower is $d_1=params.d1\mathrm{m}$, the distance from the pivot tower to the end of the mast is $d_2=params.d2\mathrm{m}$, and the angle between the chain and pivot tower is $\theta ={params.theta}^{\circ }$