Following data are given for internal shoe expanding brake as shown in Figure 16.11 (b): Force on each shoe \(=500 \mathrm{~N}\), internal radius of brake drum \((r)=200 \mathrm{~mm}, \mu=0.3\), width of brake lining \((b)=40 \mathrm{~mm}, a=25 \mathrm{~mm}, C=125\) \(\mathrm{mm}, \theta_{1}=40^{\circ}\), and \(\theta_{2}=160^{\circ}\). Find the braking torque when the drum rotates in (i) clockwise direction, and (ii) counter clockwise direction.