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MHT CET2010PhysicsLaws of Motion

When a disc is rotating with angular velocity , a particle situated at a distance of 4 ~cm just begins to slip. If the angular velocity is doubled, at what distance will the particle start to slip?

Options

  1. A1 ~cm
  2. B2 ~cm
  3. C3 ~cm
  4. D4 ~cm

Correct answer

A. 1 ~cm

Step-by-step solution

Angular velocity = Centripetal force F=m r ² or r 1 ² r₁ r₂ = ₂² ₁² or 4 r₂ = 4 ² ² or r₂=1 ~cm

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