(2) GIVEN (35 PTS): VLE FOR KINEMATIC ANALYSES
The 1DOF mechanism depicted below is taken from Waldron and Kinzel's text. All links are numbered (1,2,...), joints and other points of interest labeled with letters (A, B...) in the skeletal drawing;
(A) Attach an appropriate coordinate system to the mechanism, clearly indicating any necessary context.
(B) With $R_2$ as input, define sufficient vector loop equation(s) (VLE) as well as any geometric constraints necessary for a complete kinematic analysis of all links, coupler point $D$ and link #4's center of gravity ($G_4$).
(C) Identify the known (fixed/constant) and unknown (variable) mechanism parameters for the VLE's.
(D) Concisely explain/show how the results in (B) & (C) are sufficient to move forward and complete the kinematic analysis.