The material point mass m = 1 kg 30 moves vertically in the tube 2, which is curved along a circular arc of radius R = 12 m. To determine the tangential acceleration point in said position.

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(Chapter 3 - Dynamics theme - 13.1: Defining the parameters of curvilinear motion by the given forces) from 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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