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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A disc has mass 'm' and radius 'R'. How much tangential force should be applied to the rim of the disc so as to rotate with angular velocity 'ω' in time t? [MHT-CET 2019, MHT-CET 2019]

Answer: (B)

Solution

and \frac{Iα}{R}\frac{\frac12mR^2ω}{Rt}\frac{mRω}${2t

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Question ID VK-041046