A solid disk of mass 100.0 kg and radius 10.0 m is spinning at 0.500 rad/sec when a 15.0 kg child is placed on the outer edge. 1a) At what angular velocity will the disk-child system be spinning? 1b) If this transition in velocity occurred over the course of 7.50 μs, how much torque was applied by the child?

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Chapter6: Uniform Circular Motion And Gravitation
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1.A solid disk of mass 100.0 kg and radius 10.0 m is spinning at 0.500 rad/sec when a 15.0 kg child is placed on the outer edge.
1a) At what angular velocity will the disk-child system be spinning?
1b) If this transition in velocity occurred over the course of 7.50 μs, how much
torque was applied by the child?

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