Solution of task 9.7.12 from the collection of Kepe OE

Solution of task 9.7.12 from the collection of Kepe OE

9.7.12
The body is in plane-parallel motion.
Find its angular velocity if the acceleration of point A is 1 m / s2, the acceleration of point B is 6 m / s2, the distance AB = 1 m, the angle a = 60o.
(Answer 2)