Do not use Cartesian vectors i,j,k for solution -it was not covered in class). If Cartesian vectors are used zero marks will be assigned to question. 1. At the given instant, link CD has an angular acceleration of 5 rad/s (CCW) as shown and angular velocity of 2 rad/s (CCW) as shown. Determine: a/ angular velocity of link BC at this instant. b/ angular velocity of link AB at this instant. b/ angular acceleration of link BC at this instant. c/ angular acceleration of link AB at this instant. B WAB AB 2.5 ft 45 2 ft 60 1.5 ft @CD CD D