Ladder and wall Statics problem

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To solve the ladder and wall statics problem, apply the conditions for equilibrium, focusing on forces and torques. The ladder's weight and the normal force from the wall must be balanced by the frictional force at the base. The maximum distance from the wall is determined by the coefficient of static friction, which influences the frictional force available to prevent slipping. Using the ladder's length and weight, along with the friction coefficient, calculate the critical distance before slipping occurs. This approach will yield the greatest distance the foot of the ladder can be placed from the wall.
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cant find an equation for this one.. there is no theta soo i don't know what to do

A uniform ladder whose length is 5.8 m and whose weight is 380 N leans against a frictionless vertical wall. The coefficient of static friction between the level ground and the foot of the ladder is 0.54. What is the greatest distance the foot of the ladder can be placed from the base of the wall without the ladder immediately slipping?

thanks for the help
 
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Apply the conditions for equilibrium.
 
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