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Q. A disc of mass 4 kg, radius 0.5 m and moment of inertia 3 kgm2 rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is

  • (A) 50 J
  • (B) 150 J
  • (C) 200 J
  • (D) 400 J
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