(Solved): Member AB has the angular velocity AB=4rad/s and angular acceleration AB=6rad/s2. ...

Member $AB$ has the angular velocity ${?}_{AB}=4\mathrm{rad}/\mathrm{s}$ and angular acceleration ${?}_{AB}=6\mathrm{rad}/{\mathrm{s}}^2$. Part A Determine the angular velocity of member $CD$ at the instant shown measured counterclockwise. Express your answer using three significant figures. Enter positive value if the angular velocity is counterclockwise and negative value if the angular velocity is clockwise. Determine the angular acceleration of member $CD$ at the instant shown measured counterclockwise. Express your answer using three significant figures. Enter positive value if the angular acceleration is counterclockwise and negative value if the angular acceleration is clockwise.