two blocks of mass m1 & m2 are connected to each other bya massiess inextensible

two blocks of mass m1 & m2 are connected to each other bya massiess inextensible string of length 0.3m are placed along a diameter of turn table.the coefficient of friction b/w table &m1 is 0.5 while there is no friction between m2 &table.the table rotating with angular velocity of 10rad/sec.about vertical axis passing through its center.the masses are placed along diameter of table on either side of center o such that m1 is at a distance of 0.124m from ground.the masses are observed to be at rest as observed from turn table.m1=10kg & m2=5kg. 1)calculate friction force on m1?2)what shoud be minimum angular speed of table so that masses will slip?