13.7.9. The body 1 moves in a straight guide channel 2 there is a circular arc inside the body, but the ball 3 which moves a mass m. Determine the acceleration a1 of the body 1, if the angle φ = 60 ° the ball is in a state of relative rest.

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(Chapter 3 - Dynamics theme - 13.7: The relative motion) of Reshebnik to the collection of short tasks on the theoretical mechanics Kep OE, JA Viba, OP Grapis, JA Svetinysh et al. Publishing Moscow / Graduate School / 1989, 2009, 2012.
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