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BITSAT2014PhysicsLaws of MotionActual

A person with his hand in his pocket is skating on ice at the rate of 10 ~m / s and describes a circle of radius 50 ~m . What is his inclination to vertical: ( g =10 ~m / sec ² )

Options

  1. A⁻¹(1 / 2)
  2. B⁻¹(1 / 5)
  3. C⁻¹(3 / 5)
  4. D⁻¹(1 / 10)

Correct answer

B. ⁻¹(1 / 5)

Step-by-step solution

Since surface (ice) is frictionless, so the centripetal force required for skating will be provided by inclination of boy with the vertical and that angle is given as = v ² rg where v is speed of skating & i is radius of circle in which he moves.

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