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Question 6190
NEET Physics · Hard

System of Particles & Rotational Motion: Rolling Mixed MCQ

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Rolling MixedHardQuestion 6190

Question

Solid sphere (M=1 kg, R=0.1 m) rolls at v=2 m/s. Total KE:
  1. A
    2.8 J
    Correct
  2. B
    2 J
  3. C
    2.4 J
  4. D
    1.4 J

Correct answer

2.8 J

Explanation

KE = ½Mv²(1+I/MR²) = ½×1×4×(1+2/5) = 2×7/5 = 2.8 J. = 2.8 J.

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