A disk of radius 02m and moment of inertia 15 kgm2 is, Ask an Expert

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A disk of radius 0.2m and moment of inertia 1.5 kg*m^2 is mounted on a nearly frictionless axle. A string is wrapped tightly around the disk, and you pull on the string with a force of 25 N. After w while the disk has reached an angular speed of 2 radians/s. What is its angular speed 0.1 seconds later?

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