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Михаил_Перович
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Solution of task 18.1.13 from the collection of Kepe OE
18.1.13
The material points A, B, C and D are interconnected by weightless rigid rods of constant length. Point A is fixed, and points B, C and D move in the plane Axy. Determine the number of degrees of freedom of a system of material points. (Answer 3)
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