Question

A ladder rests against a vertical wall. There is no friction between the wall and the ladder. The coefficient of static friction between the ladder and the ground is μ = 0.566. Fu μ = 0.566 Consider the following expressions: where f: force of friction between the ladder and the ground F: normal force on the ladder due to the
where the ground wall, f: force of friction between the ladder and Fu: normal force on the ladder due to the 0: angle between the ladder and the ground, N: normal force on the ladder due to the ground W: weight of the ladder, and l: length of the ladder. Identify the set of equations which is cor- rect. Question (part 2 of 2) Determine the smallest angle θ for which the ladder remains stationary Answer in units of o.
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Free body diagram A عاد 8 W = weight of ladder f = friction force between ladder For Reaction force from wall N= normal force @ EM=0 Fox h = wxx Folsino= wxl coso 0.566 WX sino = you cose tano= 0.5 g=tan(05) 0=41457) 0.566

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