Common Data Questions: An instantaneous configuration of a four-bar mechanism whose plane is horizontal, is shown in the figure below. At this instant, the angular velocity and angular acceleration of link O2A are ω=8 rad/s α=0, respectively, and driving torque(τ) is zero.The link O2A is balanced so that its centre of mass fails at O2. ![]() At the instant considered, what is the magnitude of the angular velocity of O4B |