Auniform circular disc of mass m and radius a can rotate freely in a vertical plane about a fixed axis through its centre. a light string attached to a point on the rim is wrapped round the rim of the disc with part of the string left hanging vertically. find the angular velocity generated from rest when the string is pulled with a constant vertical force f for a time t
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Auniform circular disc of mass m and radius a can rotate freely in a vertical plane about a fixed ax...
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