A uniform beam of mass m is inclined at an angle θ to the horizontal. Its upper end produces a ninety degree bend in a very rough rope tied to a wall, and its lower end rests on a rough floor (Fig. P12.55)
(a) If the coefficient of static friction between beam and floor is μs, determine an expression for the maximum mass M that can be suspended from the top before the beam slips.
(b) Determine the magnitude of the reaction force at the floor and the magnitude of the force exerted by the beam on the rope at P in terms of m, M, and μs.

Transcribed Image Text:

Figure P12.55