Four rigid rods, OA, AB, BQ and CD are connected as shown in figure. All functions are movable C is mid point of rod AB and C is movable link. The end D of rod CD is constrained to move vertically. For the position shown angular velocity of rod OA is 60 rev/min clockwise. If OA = 1 m, AB = 1.6 m, QB = 1.2 m, OQ = 2.4 m and CD = 2 m. At the instant shown answer the following: B A 45° What is speed of 'D'?

Four rigid rods, OA, AB, BQ and CD are connected as shown in figure. All functions are movable C is mid point of rod AB and C is movable link. The end D of rod CD is constrained to move vertically. For the position shown angular velocity of rod OA is 60 rev/min clockwise. If OA = 1 m, AB = 1.6 m, QB = 1.2 m, OQ = 2.4 m and CD = 2 m. At the instant shown answer the following: B A 45° What is speed of 'D'?