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NEET
Exam
NEET
Subject
Physics
Chapter
Rotational Motion

NEET · Physics · Rotational Motion

What is the angular speed of the child when he folds his hands...

What is the angular speed of the child when he folds his hands back, reducing his moment of inertia to 2/5 times the initial value, while standing on a turntable rotating at 40 rev/min?

Options

  1. A100 rev/min
  2. B64 rev/min
  3. C50 rev/min
  4. D80 rev/min

Correct answer

A. 100 rev/min

Step-by-step solution

Correct Option is : (A)
100 rev/min
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