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AIIMS2019PhysicsMotion in Two Dimensions

A disc of radius 2 ~m is rotating with angular is to be put on the disc. Friction coefficient between disc and block is _ K =0.3 , then find the maximum distance from axis where the block can be placed without sliding

Options

  1. A2 ~cm
  2. B3 ~cm
  3. C4 ~cm
  4. D6 ~cm

Correct answer

B. 3 ~cm

Step-by-step solution

aligned & Friction force = centripetal force _ K (m g) & =m ^2 x & _ K g= ^2 x & 0.3 10=(10)^2 x x= 3 100 ~m =3 ~cm aligned

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