Problem 6 on Velocity diagram and acceleration diagram/ linear acceleration and angular acceleration

In the mechanism as shown in diagram, the crank OA rotates at 20 rpm anticlockwise and gives motion to the sliding blocks B and D. The dimensions of various links are OA =300 mm, AB =1200 mm, BC =450 mm and CD = 450 mm. For the given configuration determine 1. Velocities of sliding at B and D 2. Angular velocity of CD 3. linear acceleration of D 4. Angular acceleration of CD Please support my channel, subscribe and share my videos with friends. My aim is to provide guidance related to concepts of engineering topics