four – bar linkage

Question

1. For the four – bar linkage shown in the figure, the angular velocity of link AB is 1 rad/s. The length of link CD is 1.5 times the length of link AB. In the configuration shown, the angular velocity of link CD in rad/s is                                   

 

      (a) 3                                (b) 3/2                          (c) 1                                (d) 2/3