A meter rule is freely pivoted about its centre. A piece of putty of mass 20 g travelling…
Physics · JEE Advanced · NTA Exams — Rotational Motion
A meter rule is freely pivoted about its centre. A piece of putty of mass 20 g travelling at 5 ms-1 strikes and adheres to one end of the rule so that the rule starts to rotate in a horizontal circle. Given that the moment of inertia of the rule and putty about pivot is 0.02 kg m2, the initial angular velocity of the rule is
- 1.58 rad s-1
- 2.24 rad s-1
- 2.50 rad s-1
- 5.00 rad s-1
Answer
(C) 2.50 rad s -1
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