Two stars of masses $3×10_{31}$ kg each, and at distance $2×10_{11}$ m rotate in a plane about meteorite passes through O moving perpendicular to the star's rotation plane. In order to escape from the gravitation field of this double star, the minimum speed that meteorite should have at O is: (Take Gravitational constant $G=6.67×10_{−11}Nm_{2}Kg_{−2}$)