Solution of task 8.1.2 from the collection of Kepe OE

Solution of task 8.1.2 from the collection of Kepe OE

8.1.2
When the crank is turned OA = 01B = 0.16 m, the angle y varies according to the law? =? T. Determine the radius of curvature of the trajectory of the point D of the semicircle ABD at t = 2 s, if AB = 0.25 m (Answer 0.16)