15.1.14 1 body mass m1 = 4 kg lowered to a distance h = 1 m, lifting sliding down an inclined plane of the body weighing 2 kg m2 = 2. Determine the work done on the forces of gravity of this movement.

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(Chapter 3 - Dynamics theme - 15.1: Work and power capacity) 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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