A uniform circulr disc has radius R and mass m. A particle also of mass m is fixed point A on the edge of the disc as shown in the fig. The disc can rotate freely about a fixed horizontal chord PQ that is at a distance R/4 from the centre C of the disc. The line AC is perpendicular to PQ. Initially the disc is held vertical with the point A at its highest position. It is then aloowed to fall so that it starts rotaing about PQ. Then linear speed of the particle as it reaches its lowest posirion sqrt(xgR) where 'x' is

A uniform circulr disc has radius R and mass m. A particle also of mas

1.	A uniform circulr disc has radius R and mass m. A particle also of mass m is fixed point A on the edge of the disc as shown in the fig. The disc can rotate freely about a fixed horizontal chord PQ that is at a distance R/4 from the centre C of the disc. The line AC is perpendicular to PQ. Initially the disc is held vertical with the point A at its highest position. It is then aloowed to fall so that it starts rotaing about PQ. Then linear speed of the particle as it reaches its lowest posirion sqrt(xgR) where 'x' is
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