Solution of task 9.2.8 from the collection of Kepe OE

Solution of task 9.2.8 from the collection of Kepe OE

9.2.8
Blocks 1 and 2 rotate about fixed axes O1 and O2 with angular velocities? 1 = 4 rad / s and? 2 = 8 rad / s. Determine the angular velocity of the movable block 3. The block radii are the same and equal to r = 10 cm. (Answer 2)