Задача 00137.

A bar with a mass of 4 kg can only move along vertical guides located on a vertical wall. The coefficient of friction of the bar on the guides μ = 0.1. If a force 𝐹 acts on the bar, its modulus is equal to 20 N and directed at an angle α = 60° to the vertical (see figure). Determine the acceleration of the bar.

Detailed solution with a brief record of the conditions, formulas and laws used in the decision, the conclusion of the calculation formula and the answer.
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