In the swivelling point mechanism shown in Fig.3.31(a), \(O A=25 \mathrm{~mm}, A B=150 \mathrm{~mm}, A D=D E\), \(D E=150 \mathrm{~mm}, E F=100 \mathrm{~mm}, B C=60 \mathrm{~mm}, D S=40 \mathrm{~mm}\), and \(O C=150 \mathrm{~mm}\). Crank \(O A\) rotates at \(200 \mathrm{rpm}\). Determine the acceleration of sliding link \(D E\) in the trunnion.

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A 45% 200 rpm S Ved E B 100 mm D 80 mm (a) Configuration diagram Vs9 o,c,g Scale: 1 cm = 0.2 m/s (b) Velocity diagram b"r for sg f bc o,c.g foc S Scale: 1 cm = 3 m/s (c) Acceleration diagram sd a d Vba d 2Usg@DE ba b' ba WDE Usg g (d) Direction of for sg