Solution of task 8.4.2 from the collection of Kepe OE

Solution of task 8.4.2 from the collection of Kepe OE

8.4.2
Wedges 1 and 3 move along parallel horizontal guides, and the intermediate wedge 2 - along vertical guides.
Determine the movement of the wedge 3, if the movement of the wedge 1 is 0.12 m, and the angles? = 30 ° and? = 60 °. (Answer 0.04)