AP Physics C: Mechanics
6.2 Torque and Work
A light cord is wrapped around the outer rim of a circular pulley of radius \(0.30\text{ m}\) mounted on a fixed frictionless horizontal axle. A constant tension force of magnitude \(20\text{ N}\) is exerted tangentially on the cord as the pulley rotates through an angular displacement of \(5.0\text{ rad}\). How much work is done by the tension force on the pulley during this displacement?
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