Two blocks of mass `m_1​=10 kg` and `m_2​=5 kg` connected to each other by a massless inextensible string of length 0.3m are placed along a diameter of a turn table. The coefficient of friction between the table and`m_1`​ is 0.5 while there is no friction between `m_2`​ and the table. The table is rotating with an angular velocity of `10rad s^(-1)` about a vertical axis passing through its centre O. The masses are placed along the diameter of the table on either side of the centre O, such that `m_1`​ is at a distance of 0.124m from O. The masses are observed to be at rest with respect to an observer on the turn table. Calculate the frictional force on `m_1`.​