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MHT CET202014 Oct 2020Evening ShiftPhysicsMotion in Two DimensionsActual

A particle rotates in horizontal circle of radius 'R' in a conical funnel, with speed 'V'. The inner surface of the funnel is smooth. The height of the plane of the circle from the vertex of the funnel is ( g = acceleration due to gravity )

Options

  1. AV ² 2 ~g
  2. BV g
  3. CV ² ~g
  4. DV 2 g

Correct answer

C. V ² ~g

Step-by-step solution

mg = R mv ² r = R = rg v ² = r h h = v ² ~g

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