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6. system of particles and rotational motion — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics6. system of particles and rotational motion1 Mark
MCQ
A disc of radius $1\,m$ and mass $4\,kg$ rolls on a horizontal plane without slipping in such a way that its centre of mass moves with a speed of $10\,cm/\sec .$ Its rotational kinetic energy is
  • A
    $0.01\,\,erg$
  • B
    $0.02\,\,joule$
  • C
     $0.03\,joule$
  • ✓
    $0.01\,joule$
✓

Answer

Correct option: D.
$0.01\,joule$
d

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