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MHT CET202013 Oct 2020Evening ShiftPhysicsRotational MotionActual

A bucket containing water is revolved in a vertical circle of radius ' r ^ . To prevent the water from falling down, the minimum frequency of revolution required is [ g = acceleration due to gravity ]

Options

  1. A1 2 g r
  2. B2 g r
  3. C2 g r
  4. D1 2 r g

Correct answer

A. 1 2 g r

Step-by-step solution

For minimum velocity at the highest point we should have mr ²= mg ²= g r or = g r aligned 2 f &= g r f &= 1 2 g r aligned

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