In the mechanism shown in Fig.2.24(a), the crank (O_{1} A) and (O_{2} B) are 100 and (50
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In the mechanism shown in Fig.2.24(a), the crank \(O_{1} A\) and \(O_{2} B\) are 100 and \(50 \mathrm{~mm}\), respectively. The diameters of wheels with centres \(O_{1}\) and \(O_{2}\) are 260 and \(150 \mathrm{~mm}\), respectively. \(B C=A C=200 \mathrm{~mm}\), \(C D=250 \mathrm{~mm}\). The wheels roll on each other. The crank \(O_{1} A\) rotates at \(120 \mathrm{rpm}\). Determine
(a) the velocity of the slider \(D\),
(b) the angular velocities of links \(B C\) and \(C D\) and
(c) the torque at \(O_{2} B\) when the force required at \(D\) is \(4 \mathrm{kN}\).
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