9.6.21
The pinion 1 and the crank AB are 30 cm long apart independently of each other. On the crank axis B there is a pinion 2 of radius r2 = 15 cm, to which the connecting rod 3 is attached. Determine the angular velocity of the gear when the angle? = 90 ° and the speed vc of point C of the slider is 0.3 m / s. (Answer 2)