Two particles of mass `M=3kg` each are kept on a horizontal circular platform on two mutually perpendicular radii at equal distance `R=1m` from the centre of the table. The particles are connected with a string,which is just taught when the platform is not rotating.Coefficient of friction between the platform and block is `mu=0.4`.Then the maximum angular speed `(omega` in `frac{rad}{sec}``)` of platform about its centre so that the blocks remain stationary relative to platform is (take `g=10.m/s^(2)` )