Flame Institute SCF 18 Near Chawla Lights Phase 7 Mohali Chandigarh 9888949978

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Flame SCF 18 Near Chawla Lights Ph-7 Mohali 9888949978

82. A uniform disc of mass M and radius R is rotating about a horizontal axis passing through its centre with angular velocity ω. A piece of mass m breaks from the disc and flies off vertically upwards. The angular speed of the disc will be

(a) (M-2m)ω/(M-m)

(b) (M+2m)ω/(M+m)

(c) (M-2m)ω/(M+m)

(d) (M+2m)ω/(M-m)

Ans. a

3.8/5 - (13 votes)

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