Obliczenia układu z tarciem – pręt oparty o ścianę (zadanie z egzaminu)

In this video, I present the solution to one of the more challenging problems related to the analysis of a system with sliding friction. This type of problem in statics is often called a "ladder." Similar problems often appear in exams/assessments in mechanics or strength of materials. 🤑With the code: YTR30 30% off!🤑 👉 In this video, I'll show you: 0:40​​​ A real-life example of this type of problem in Statics and Sliding Friction 1:13 How to replace the rod (support) attachments with appropriate interaction forces (reactions), i.e., how to free the system from constraints 2:27 How to correctly mark the friction force vectors acting on a rod leaning against a wall or ladder in a drawing 4:22​​ How to write the equilibrium equations for the static system with friction presented in the problem 6:55​​ How to determine the values ​​of the rod's pressure force on the wall and the ground, as well as the values ​​of the friction forces 9:40 How to determine the effect of friction and pressure forces on the critical value of the rod's angle of inclination relative to the ground 10:29 How to write the equation of moments about the support point of a rod (ladder). 18:46 How to determine the critical angle of inclination of a rod (ladder) relative to the ground from the written equilibrium equations so that the entire system remains in static equilibrium (does not move) The problem is to determine the minimum angle of inclination of a rod relative to the ground for which the rod does not slide down the wall under its own weight (it remains at rest due to friction). The main problem is to determine the directions and senses of the forces acting in the system and to write the equilibrium equations taking into account the rod's inclination. Need help: Online tutoring: https://mechadevs.com EquiBeam app: https://equibeam.mechadevs.com Online courses: https://dobrykorepetytor.pl