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Question 6131
NEET Physics · Medium

System of Particles & Rotational Motion: Rotational KE MCQ

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Rotational KEMediumQuestion 6131

Question

Rotational KE = ½Iω². For a solid cylinder rolling without slipping, ratio KE_rot/KE_trans:
  1. A
    1
  2. B
    1/2
    Correct
  3. C
    2
  4. D
    1/4

Correct answer

1/2

Explanation

Cylinder: I=½MR². KE_rot = ½×½MR²×(v/R)² = ¼Mv². KE_trans = ½Mv². Ratio = 1/2.

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