Solution of task 9.5.5 from the collection of Kepe OE

Solution of task 9.5.5 from the collection of Kepe OE

9.5.5
The rod AB of length 60 cm moves in the plane of the drawing.
At some point in time, the points A and B of the rod have velocities vA = 4 m / s, vB = 2 m / s.
Determine the distance from the point A to the instantaneous velocity center. (Answer 0.4)