A7.2. A four-bar linkage is shown below. (A) Use the method of Instant Centers & AVRT to calculate wz and w. Report the directionsof each. (B) Find the magnitude and

direction of the absolute velocity of point E on link 3. \mathrm{R}_{\mathrm{AD}}=10 \mathrm{~cm}, \mathrm{R}_{\mathrm{BD}}=15 \mathrm{~cm}, \mathrm{R}_{\mathrm{BC}}=60 \mathrm{~cm} ; \mathrm{R}_{\mathrm{CE}}=65 \mathrm{~cm} ; \mathrm{R}_{\mathrm{EF}}=15 \mathrm{~cm} \omega_{2}=2 \mathrm{rad} / \mathrm{s} \mathrm{cw} (Note: ADB and FEC are right triangles.)