Solution of task 6.1.2 from the collection of Kepe OE

Solution of task 6.1.2 from the collection of Kepe OE

6.1.2
Bracket ABD consists of homogeneous rods AB and BD with the same linear weight. What should be the length in cm of the rod AB so that the xc center of gravity of the bracket equals zero if BD = 20 cm. (Answer 28.3)

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