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MMLU-Pro / 9103 / A solid sphere (I = 0.06 kg·m^2) spins freely around an axis through its center…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A solid sphere (I = 0.06 kg·m^2) spins freely around an axis through its center at an angular speed of 20 rad/s. It is desired to bring the sphere to rest by applying a friction force of magnitude 2.0 N to the sphere’s outer surface, a distance of 0.30 m from the sphere’s center. How much time will it take the sphere to come to rest?

category

physics

options

  1. 0.1 s
  2. 3 s
  3. 5 s
  4. 2 s
  5. 6 s
  6. 1 s
  7. 4 s
  8. 0.06 s
  9. 0.03 s
  10. 0.5 s

src

ori_mmlu-high_school_physics

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Source and history

Official source

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