A uniform disk of mass 300 kg is rotating freely about a vertical axis through itscentre with constant angular velocity \omega_0. A boy of mass 30 kg starts from thecentre and moves along a radius to the edge of the disk. The angular velocity ofthe disk now is

JEE Mains Model Paper 5

Question : 9 of 90

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A uniform disk of mass 300 kg is rotating freely about a vertical axis through itscentre with constant angular velocity ω0. A boy of mass 30 kg starts from thecentre and moves along a radius to the edge of the disk. The angular velocity ofthe disk now is

ω0
6
ω0
5
4ω0
5
5ω0
6

Validate

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