1. Tardigrade
  2. Question
  3. Physics
  4. A person is standing on a moving platform spreading his arms. He suddenly contracts his rms, his:

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Q. A person is standing on a moving platform spreading his arms. He suddenly contracts his rms, his:

Rajasthan PMTRajasthan PMT 2000

Solution:

Angular momentum $ J=I\omega . $ On stretching the arm, their is no effect on $ I $ and $ \omega , $ therefore, angular momentum remains same.