A uniform 8.6 m tall aluminum ladder is lean- ing against a frictionless vertical wall. The ladder has a weight of 294 N. The ladder slips when it...

A uniform 8.6 m tall aluminum ladder is lean- ing against a frictionless vertical wall. The ladder has a weight of 294 N. The ladder slips when it makes a 47.0◦ angle with the horizon- tal floor.Determine the coefficient of static friction between the ladder and the floor.