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Olympiad workbook
Exam
Olympiad workbook
Subject
NSEP
Chapter
Rotational Motion

Olympiad workbook · NSEP · Rotational Motion

A string of length l , tied to the top of a pole, carries a ball at...

A string of length ll, tied to the top of a pole, carries a ball at its other end as shown. On giving the ball a single hand blow perpendicular to the string, it acquires an initial velocity v0v_0 in the horizontal plane and moves in a spiral of decreasing radius by curling itself around the pole. Therefore, A string of length l , tied to the top of a pole, carries a ball at its other end as shown. On giving the ball a single

Options

  1. Athe instantaneous centre of revolution of the ball is the point of contact of the string with the pole at that instant.
  2. Bthe instantaneous centre of revolution of the ball will be fixed at the point where the string was initially fixed.
  3. Cthe angular momentum of the system will not be conserved.
  4. Dthe angular momentum of the system will be conserved.

Correct answer

C. the angular momentum of the system will not be conserved.

Step-by-step solution

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