a) The magnitude of the reaction at A is equal to the weight of the man, 90 kg, and the magnitude of the reaction at B is equal to the weight of the ladder, 20 kg.
b) The distance x for which the ladder will be ready to fall is when the center of gravity of the man and the ladder is at the same point, which is at the midpoint of the ladder, 2.5 m.
The 90-kg man, whose center of gravity is at G, is climbing a uniform ladder. The length of the ladder is 5 m, and its mass is 20 kg. Friction may be neglected.
(a) Compute the magnitudes of the reactions at A and B for x =1.5 m.
(b) Find the distance x for which the ladder will be ready to fall.
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