A 150 lb person stands 14 ft up a 19 ft ladder. The ladder weighs 85 lb and leans with a 50 degree angle from the horizontal against a smooth (frictionless) wall. a)  Determine the reaction force(s) that the wall exerts against the ladder. b)  Determine the minimum value for the coefficient of static friction between the bottom of the ladder and the ground that is required to keep the ladder from slipping.

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.