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NEST2020PhysicsRotational Motion

A disk shaped coin is tossed up in the air with 'Head' side on the top. The initial centre of mass velocity of the coin is 6.8 ~m ~s ⁻¹ in the vertical direction. In addition, the disk is rotating about the horizontal axis with angular velocity 6 rad s ⁻¹ . Assume the motion in air is torque-free. Find the number of completed flips the disk will perform before it hits the ground under the action of gravity.

Options

  1. A5 completed flips with 'Tail' side on the top.
  2. B4 completed flips with 'Tail' side on the top.
  3. C5 completed flips with 'Head' side on the top.
  4. D4 completed flips with 'Head' side on the top.

Correct answer

D. 4 completed flips with 'Head' side on the top.

Step-by-step solution

No solution available.

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