A uniform disc of mass m and radius R is connected with two light springs 1 and 2 . The springs are connected at the highest point M and the center of mass (CM) 'N' of the disc. The other ends of the springs are rigidly attached with vertical walls. If we shift the CM in horizontal direction by a small distance, the disc oscillates simple harmonically. Assuming a perfect rolling of the disc on the horizontal surcface, the angular frequency of oscillation is (answer upto two decimal places)
( Take k1 = 10 N/m , k2 = 20 N/m, m=10 kg )