MHT CET Physics question
A cord is wound around the circumference of wheel of radius 'r'. The axis of the wheel is horizontal and moment of inertia about it is 'I'. The weight 'mg' is attached to the end of the cord and falls from rest. After falling through a distance 'h', the angular velocity of the wheel will be [MH-CET 2015]
Answer: (C)
Solution
Energy conservation gives with , so ; (a)
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