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AP EAMCET201726 Apr 2017Evening ShiftPhysicsCenter of Mass, Momentum and CollisionActual

Three circular discs of same material and same thickness of radii r, 2 r and 3 r are placed on a horizontal plane such that their centres lie along a straight line. The radius of the middle disc is 2 r and it touches the other two discs. The distance of the centre of mass of the system from the centre of the smaller disc is ________ .

Options

  1. A2 r
  2. B4 r
  3. C6 r
  4. D8 r

Correct answer

C. 6 r

Step-by-step solution

No solution. Refer to answer key.

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