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AP EAMCET202420 May 2024Morning ShiftPhysicsRotational MotionActual

The moment of inertia of a solid sphere of mass 20 kg and diameter 20 cm about the tangent to the sphere is

Options

  1. A0.24 kgm ^2
  2. B0.14 kgm ^2
  3. C0.28 kgm ^2
  4. D0.08 kgm ^2

Correct answer

C. 0.28 kgm ^2

Step-by-step solution

m =20 ~kg , ~d =20 ~cm r =10 ~cm The moment of inertia of a solid sphere about its tangent is I = 2 5 mr ^2+ mr ^2= 7 5 mr ^2= 7 5 20 10 10 10⁻⁴=0.28 ~kg ~m ^2

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