Physics · System of Particles and Rotational Motion
A bob of mass m is tied by a massless string whose other end portion is wound on a fly wheel (disc) of radius r and mass m. When released from rest, the bob starts falling vertically. When it has covered a distan ce h, the angular speed of the wheel will be:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11r √2gh3
- 2r √32gh
- 31r √4gh3✓
- 4r √34gh
Correct answer
1r √4gh3
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