Two small rings O and O' are put two vertical stationary

Last updated: 7/31/2022

Two small rings O and O' are put two vertical stationary rods AB and A'B', respectively. One end of an inextensible thread is tied at point A'. The thread passes through ring O' and its other end is tied to ring O. Assuming that the ring O' moves downwards at a constant velocity V₁ determine the velocity V₂ of the ring when ∠AOO' = α