An 800-N man stands halfway up a 5.0-m long ladder of negligible weight. The base of the ladder is 3.0 m from the wall as shown. Assume that the wall-ladder contact is frictionless. What is the magnitude of the pushing force that the wall exerts on the ladder? 3 m TTTI

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A:

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Q: +Q •P -Q

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Q: 30 N 4.0 cm 20 N

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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.