5. The disk has a constant angular velocity of 20 70 mm rad/sec clockwise. Note that the point A is hinged at a fixed location. Use the vector equations you learned in class. (a) Determine the two values of the angle @ for B which the velocity of collar D is zero. (b) For each of these values of 6, determine the corresponding value of the angular velocity of bar BD. If your calculator does not have a functionality to solve a nonlinear algebraic equation, use MATLAB. Answer: (a) 0.399 rad, 3.362 rad (b) -5.6 rad/sec, 5.6 rad/sec 250 min D