Assignment 1 (COMPULSORY) In the quick-return mechanism represented in figure Q1, the crank OB rotates uniformly at 200 r/min in a clockwise direction about the fixed centre O which is 6,0 cm from the other fixed centre 03. 03C = 12 cm, OB = 3,0 cm and CD =4,5 cm. Determine for this position in which the angle 0 = 30: Question 1 1.1 the linear velocity of the sliding block D and the angular velocity of link 03C; 1.2 the torque required at the driving shaft through O2 if a force of 320 N opposing the motion of the sliding block D. (8) (3) [11] 6.0 cm 0 PL 402 Figure Q1 B- 4