The discussion centers on the equilibrium of a thin, stiff rectangular plate resting on two inclined planes with angles α and β, where α + β = 90°. The participants analyze the forces acting on the plate, including normal forces and gravitational forces, while attempting to determine the conditions for static balance. Key insights include the relationship between the angles and the stability of the system, emphasizing that the normal force (NA) is perpendicular to the plate and that the angle θ, which the plate makes with the horizontal, is critical for stability. The conclusion is that the system's stability depends on the specific angles α and β, and whether a suitable angle θ exists for equilibrium.
PREREQUISITESStudents in physics or engineering disciplines, particularly those studying mechanics, as well as educators and tutors looking to enhance their understanding of equilibrium conditions in rigid body dynamics.
aang said:Well the first problem is α+β = 90.
IT is the exact same problem.
Do i really need to start a new thread for the same question.
Those don't add to 90.aang said:and where α=45,β=60.