Two blocks of masses m1=10 kg and m2=5 kg connected to each other by a massless inextensible string of length 0.3 m are placed along a diameter of a turn table. The coefficient of static friction between the table and block m1 is μ=0.5 while there is no friction between block m2 and the table. The table is rotating with an angular speed of 10 rad/s about a vertical axis passing through its centre O. The masses are placed along the diameter of turn table on either side of the centre O such that the mass m1 is at a distance of 0.124 m from O. The masses are observed to be rotating with the turn table without slipping. Calculate the frictional force acting on block m1.