Solution of task 2.4.46 from the collection of Kepe OE

Solution of task 2.4.46 from the collection of Kepe OE

4.2.46
The arm acts on the bracket F = 10Н. Find the maximum length l of the beam, at which the moment of the pair of forces arising in the seal A does not exceed 1 Nm, if the radius r = 0.05 m, the angle? = 60 °. (Answer 0.10)