3. For each linkage shown, find the path of point P using graphical methods. (a) Inverted slider mechanism: CA=50 mm, BA-87.5 mm, and PC=100 mm. (b) Second inversion of the slider-crank mechanism: CA=40 mm, BA=20 mm, and PB=65 mm. (c) Straight-line mechanism: BA=CB=PB-25 mm. (d) Drag-link mechanism: DA=25 mm, BA=50 mm, BC=DC-75 mm, and PB-100 mm. 2 2 (a) B (c) 3 B C P 4 2 Bo B 2 3 (b) 3 (d) 4 D A OP