Solve Prob. 4.124 assuming that the rope is attached to the door at I. Problem 4.124: A small door having a mass of 7 kg is attached by hinges A and B to a wall and is held in the horizontal position shown by rope EFH. The rope passes around a small, frictionless pulley at F and is tied to a fixed cleat at H. Assuming that the hinge at A does not exert any axial thrust, determine

(a) The tension in the rope,

(b) The reactions at A and B.

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75 min 1350 m 125 m 0 mm 125 man -225 mm 700 mn ноо нат