(Solved): 4.8 The angular velocity and angular acceleration of link 2 of the Scott-Russell linkage in the pos ...

4.8 The angular velocity and angular acceleration of link 2 of the Scott-Russell linkage in the posture shown are \( \omega_{2}=20 \mathrm{rad} / \mathrm{s} \mathrm{cW} \) and \( \alpha_{2}= \) \( 1493 \mathrm{rad} / \mathrm{s}^{2} \mathrm{cw} \), respectively. Determine the velocity and acceleration of point \( B \) and the angular acceleration of link 3 . Figure \( \mathbf{P} 4.8 R_{A O_{2}}=R_{C A}=R_{B A}=100 \mathrm{~mm} \).