1. The problem statement, all variables and given/known data A) Determine the value of the angle θ (measured from vertical) when the angular velocity of link AB a maximum. B) What is the maximum angular velocity of link AB. 2. Relevant equations 3. The attempt at a solution This is a part of a bigger question. I've managed to answer all other part apart of those two. Can anyone point me in the right direction. I'm not an expert in this subject. Just let me know if you require any more data.