Problem: A solid sphere of 5 kg mass and 2 cm radius rotates about an axis through its center. If a constant force of 5 N is applied tangentially to the edge of the sphere, how rapidly is the sphere's kinetic energy changing when the angular speed is 50 rad/s?

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A solid sphere of 5 kg mass and 2 cm radius rotates about an axis through its center. If a constant force of 5 N is applied tangentially to the edge of the sphere, how rapidly is the sphere's kinetic energy changing when the angular speed is 50 rad/s?