3. Design a four-bar linkage that will take line AB on the coupler through the three positions shown. A and B are to be the moving pivots (circle points). Positions 1 and 3 are horizontal. (a) Use the GCP approach to synthesize the linkage. Make sure you show your steps and include appropriate text to describe the process and make sure you show the solution verification. (b) Determine the Grashof type and whether the link is a crank rocker, double crank or double rocker. = (c) Specify all four link lengths if LAB 5 inches. You can show the dimensions on one of your screen shots. (0,0) A B (4.6,-3.2) A 47.4 B A (5,-9.6)